Ok, so it may be a few weeks late, but yes indeed the 2011 Chevrolet Cruze is now a resident at 4403 42nd Ave.
Our launch party was a huge success with 50+ people in attendance. Cherene King was the lucky winner of our iPad giveaway while the rest of the attendees enjoyed all the free food and drinks.
Until December 21st, Edwards Garage has a promotion running for Cruze test drives. Hiow it works is simple, test drive the Cruze and you are entered. All the names entered will then be drawn for a second iPad. So I encourage everyone, if you have not already, to come on down and try out the Cruze!!
Tuesday, November 23, 2010
Friday, October 22, 2010
Tuesday, October 12, 2010
2011 Chevrolet Cruze Launch
After about a year and a half, I have decided to make another blog entry......
This is a very exciting month for Edwards Garage and GM in general, as together we are launching the new Chevrolet Cruze. For those of you who are not familiar with the Cruze, it is literally a "world-class" vehicle that will bring class leading fuel economy, safety, and comfort to the small car segment.
As the excitement/hype continues to grow, we have begun setting up our dealership to prepare for the targeted October 30th launch. A few of the things we have done in order to prepare for the launch was setup a official launch party from 12-1 on October 30 here at the dealership where we will be giving away an Apple iPad as well as serving snacks for all those who attend, created a Cruze specific website www.cruzealberta.com , and even tied in the annual Operation Christmas Child Shoebox program with the Cruze (we are going to try to fill a Cruze with shoeboxes).
So with great enthusiasm I invite all our blog readers to come out and be apart of the Cruze launch and if you so choose, test drive this amazing new car!!
2011 Chevrolet Cruze Alberta Launch Page (www.cruzealberta.com)
This is a very exciting month for Edwards Garage and GM in general, as together we are launching the new Chevrolet Cruze. For those of you who are not familiar with the Cruze, it is literally a "world-class" vehicle that will bring class leading fuel economy, safety, and comfort to the small car segment.
As the excitement/hype continues to grow, we have begun setting up our dealership to prepare for the targeted October 30th launch. A few of the things we have done in order to prepare for the launch was setup a official launch party from 12-1 on October 30 here at the dealership where we will be giving away an Apple iPad as well as serving snacks for all those who attend, created a Cruze specific website www.cruzealberta.com , and even tied in the annual Operation Christmas Child Shoebox program with the Cruze (we are going to try to fill a Cruze with shoeboxes).
So with great enthusiasm I invite all our blog readers to come out and be apart of the Cruze launch and if you so choose, test drive this amazing new car!!
2011 Chevrolet Cruze Alberta Launch Page (www.cruzealberta.com)
Friday, April 9, 2010
11 Tips for getting your RV ready for summer!!!
11 Steps to get your RV Ready for Spring
You need to prepare your RV for the first use of the season.
Here is a list of 11 important items and systems to inspect and test.
1. Outside: One of the biggest problems we see with RV’s is water leaks. Look at all caulking to be sure it is not cracked or missing. This includes caulking around windows, doors, all roof vents and seams. Even the smallest crack will allow water to intrude.
2. Tires: Visually inspect tires for sidewall cracks and cracks between treads. Any cracks should be considered a danger and tires should be replaced. Check tire pressure. Refer to the manufacturers recommended tire pressure. There should be a decal inside of a cabinet with recommended tire pressures.
3. Cleaning Appliances: Remove the outside access covers for the water heater and refrigerator. Inspect the burner assembly for any foreign debris such as spider webs and nests. LIGHT air pressure from a compressor can be used to clean the burner area. Be sure not to blow high pressure up the refrigerator chimney. If in doubt, let a professional do it.
4. Batteries: (Safety glasses and latex gloves on. Shore power disconnected. All items in RV off or main cut off in off position.) Check and clean corroded terminals, connections, and battery trays. Hot water and baking soda work well. Check battery fluid levels if possible. (Some battery caps are not removable) In many cases, you will need to pull batteries out or even remove them to check the fluid level. Be careful with wiring if removing. Many times positive and negative wires are not marked or color coded. Take the time to mark each and every wire. I use masking tape and a sharpie. I also draw a picture of exactly how each battery is installed. I cannot tell you how many times I have had to straighten out someone’s mess from improper battery connections. (usually causes catastrophic component failure) It is important to check batteries for fluid. Many times the RV has been connected to shore power for extended amounts of time. This can cause the batteries to overheat and boil the fluid out. Top fluid levels off with distilled water. Be careful not to overfill. Keep the level below the upper case fill ring.
This is a good time to test the batteries. You will need to have a professional perform a load test. Be sure the batteries are fully charged before the test. Low charge will cause a battery to fail the load test. Many times the person testing the battery does not check the state of charge. This is improper. If they don’t check the state of charge, go elsewhere. They may just be trying to sell you new batteries.
When replacing batteries, always replace multiple battery banks together. Don’t add an old battery to a new battery. (Coach Batteries and chassis batteries are banked separate)
5. L.P.: Be sure all L.P. items are turned off first. No smoking, flames, or sparks! Turn the leak detector inside the RV on FIRST. Open the valve on the tank all the way. Smell around the area for leaks. A soapy water solution can be used to check for leaks around the valve and regulator. I use a combination of an electronic leak detector and soapy water in a spray bottle. If you suspect a leak, turn the L.P. valve off immediately. Have a professional inspect and repair the leak. (Some times seals dry out over the winter causing new leaks that weren’t there before storage)
6. Water: Before filling with water, check the hot water heater bypass valve. It needs to be in the “normal” position and all faucets need to be closed. It’s best to do the initial season fill with the “city water” connection. This will use the faucets water pressure to fill the empty lines and water heater. (It can also be done with the fresh water tank and pump) Open a hot and cold water faucet during filling to let the air escape until the water flows steady. Inspect faucets for leaks. Inspect the water heater over pressure safety valve for leaks. Inspect the water heater drain plug outside the RV for leaks. After the water runs steady, turn off the city water. Add fresh water to the onboard tank. Relieve the line pressure by opening a hot and cold faucet until water flow stops. Close the faucets. Switch the fresh water pump on. After the pump stops running, allow about 20-30 minutes to hear if the pump cycles on again. (The pump cycling on indicates a pressure drop or leak). If the pump does not cycle on, the system should be ready to use. Run enough water through each faucet to be sure all RV antifreeze is removed. If the unit was winterized properly, there shouldn’t be much in it.
7. Test fire appliances: Once the L.P. and water systems are up and running, it is time to test fire appliances. For the first use of the season, start by lighting a stove top burner. Be certain the L.P. gas leak detector is on. Lighting a stove top burner will fill the L.P. lines. This is the easiest flame to see, so you will know when it ignites and the air in the lines is purged. Next you can light the other L.P. fired items. Be certain the water heater is full before igniting.
8. Generator: Gasoline and L.P. powered generators are very similar. Typically, lack of fuel will make them hard starting after sitting for an extended time. Some newer generators have a “prime” function to run the fuel pump prior to starting. Late model Onan Microquiet and Microlite generators have this feature built in to the start switch, but in some cases are not marked. To operate the prime feature, simply hold the start/stop switch in the stop position. After a few seconds the light in the switch will illuminate indicating fuel pump operation. Run the pump for about 20 seconds to deliver fuel to the carburetor. The generator will start much quicker. If your generator does not have a prime feature, you will have to crank it until it starts. Let the starter rest to cool after about 15 seconds of cranking. Cycle the starter until it runs. Let it run for a short while, then check the oil level. Check the air filter to be certain there are no nests from storage.
9. Dump Hoses: Inspect your sewage dump hose. Dump hoses have a limited lifespan. Be certain the hose is in good condition with no tears or holes prior to use.
10. Waste tank valves: While connected to a dump station, carefully operate the waste tank valves the first time of the season. Valve seals can dry out causing them to stick and make the valves hard to operate. Carefully working the handle in and out in short increments may save replacing the valves. There are additives for valve lubrication that can be added to the tanks.
11. Awnings: Simply operate awnings and inspect fabric. If the effort to extend is difficult, the spring tension may need adjusted. (Take to a professional) Spring adjustment is very dangerous. I have the scars to prove it.
And if you want to save yourself the hassle/time of having to look over everything, we can do your Spring Check-up for $145.95.
Happy Camping!!
**Information taken from www.rvhelpdesk.com Blogger Mike Wilson (wilsonrv.com)**
You need to prepare your RV for the first use of the season.
Here is a list of 11 important items and systems to inspect and test.
1. Outside: One of the biggest problems we see with RV’s is water leaks. Look at all caulking to be sure it is not cracked or missing. This includes caulking around windows, doors, all roof vents and seams. Even the smallest crack will allow water to intrude.
2. Tires: Visually inspect tires for sidewall cracks and cracks between treads. Any cracks should be considered a danger and tires should be replaced. Check tire pressure. Refer to the manufacturers recommended tire pressure. There should be a decal inside of a cabinet with recommended tire pressures.
3. Cleaning Appliances: Remove the outside access covers for the water heater and refrigerator. Inspect the burner assembly for any foreign debris such as spider webs and nests. LIGHT air pressure from a compressor can be used to clean the burner area. Be sure not to blow high pressure up the refrigerator chimney. If in doubt, let a professional do it.
4. Batteries: (Safety glasses and latex gloves on. Shore power disconnected. All items in RV off or main cut off in off position.) Check and clean corroded terminals, connections, and battery trays. Hot water and baking soda work well. Check battery fluid levels if possible. (Some battery caps are not removable) In many cases, you will need to pull batteries out or even remove them to check the fluid level. Be careful with wiring if removing. Many times positive and negative wires are not marked or color coded. Take the time to mark each and every wire. I use masking tape and a sharpie. I also draw a picture of exactly how each battery is installed. I cannot tell you how many times I have had to straighten out someone’s mess from improper battery connections. (usually causes catastrophic component failure) It is important to check batteries for fluid. Many times the RV has been connected to shore power for extended amounts of time. This can cause the batteries to overheat and boil the fluid out. Top fluid levels off with distilled water. Be careful not to overfill. Keep the level below the upper case fill ring.
This is a good time to test the batteries. You will need to have a professional perform a load test. Be sure the batteries are fully charged before the test. Low charge will cause a battery to fail the load test. Many times the person testing the battery does not check the state of charge. This is improper. If they don’t check the state of charge, go elsewhere. They may just be trying to sell you new batteries.
When replacing batteries, always replace multiple battery banks together. Don’t add an old battery to a new battery. (Coach Batteries and chassis batteries are banked separate)
5. L.P.: Be sure all L.P. items are turned off first. No smoking, flames, or sparks! Turn the leak detector inside the RV on FIRST. Open the valve on the tank all the way. Smell around the area for leaks. A soapy water solution can be used to check for leaks around the valve and regulator. I use a combination of an electronic leak detector and soapy water in a spray bottle. If you suspect a leak, turn the L.P. valve off immediately. Have a professional inspect and repair the leak. (Some times seals dry out over the winter causing new leaks that weren’t there before storage)
6. Water: Before filling with water, check the hot water heater bypass valve. It needs to be in the “normal” position and all faucets need to be closed. It’s best to do the initial season fill with the “city water” connection. This will use the faucets water pressure to fill the empty lines and water heater. (It can also be done with the fresh water tank and pump) Open a hot and cold water faucet during filling to let the air escape until the water flows steady. Inspect faucets for leaks. Inspect the water heater over pressure safety valve for leaks. Inspect the water heater drain plug outside the RV for leaks. After the water runs steady, turn off the city water. Add fresh water to the onboard tank. Relieve the line pressure by opening a hot and cold faucet until water flow stops. Close the faucets. Switch the fresh water pump on. After the pump stops running, allow about 20-30 minutes to hear if the pump cycles on again. (The pump cycling on indicates a pressure drop or leak). If the pump does not cycle on, the system should be ready to use. Run enough water through each faucet to be sure all RV antifreeze is removed. If the unit was winterized properly, there shouldn’t be much in it.
7. Test fire appliances: Once the L.P. and water systems are up and running, it is time to test fire appliances. For the first use of the season, start by lighting a stove top burner. Be certain the L.P. gas leak detector is on. Lighting a stove top burner will fill the L.P. lines. This is the easiest flame to see, so you will know when it ignites and the air in the lines is purged. Next you can light the other L.P. fired items. Be certain the water heater is full before igniting.
8. Generator: Gasoline and L.P. powered generators are very similar. Typically, lack of fuel will make them hard starting after sitting for an extended time. Some newer generators have a “prime” function to run the fuel pump prior to starting. Late model Onan Microquiet and Microlite generators have this feature built in to the start switch, but in some cases are not marked. To operate the prime feature, simply hold the start/stop switch in the stop position. After a few seconds the light in the switch will illuminate indicating fuel pump operation. Run the pump for about 20 seconds to deliver fuel to the carburetor. The generator will start much quicker. If your generator does not have a prime feature, you will have to crank it until it starts. Let the starter rest to cool after about 15 seconds of cranking. Cycle the starter until it runs. Let it run for a short while, then check the oil level. Check the air filter to be certain there are no nests from storage.
9. Dump Hoses: Inspect your sewage dump hose. Dump hoses have a limited lifespan. Be certain the hose is in good condition with no tears or holes prior to use.
10. Waste tank valves: While connected to a dump station, carefully operate the waste tank valves the first time of the season. Valve seals can dry out causing them to stick and make the valves hard to operate. Carefully working the handle in and out in short increments may save replacing the valves. There are additives for valve lubrication that can be added to the tanks.
11. Awnings: Simply operate awnings and inspect fabric. If the effort to extend is difficult, the spring tension may need adjusted. (Take to a professional) Spring adjustment is very dangerous. I have the scars to prove it.
And if you want to save yourself the hassle/time of having to look over everything, we can do your Spring Check-up for $145.95.
Happy Camping!!
**Information taken from www.rvhelpdesk.com Blogger Mike Wilson (wilsonrv.com)**
Wednesday, March 10, 2010
GM one-ups Ford and the New 2500HD Denali!!
The power ratings for the new Duramax Diesel have been released and let me just say, they are impressive to say the least.
About a month ago Ford announced the ratings for their newly designed 2011 Super Duty to rave reviews. Their diesel engine was listed at 390 horsepower and 735 lbs./ft. of torque. Very impressive numbers when compared to any 2010 diesel truck, but then along came the General.
The all-new Duramax Engine ratings have been released and sit at an impressive 397 horsepower and 765 lbs./ft. of torque. That is a 32 horsepower and 105 lbs./ft. of torque increase over the 2010 Duramax's. GM is also claiming (not official) that driver's could expect to see a fuel range of 680 miles (1095kms) highway on a full 36 gallon (137 liter) tank. So needless to say, the anticipation of the 2011 Duramax Diesel continues to build.
Check the new 2500HD Denali:
http://www.autoblog.com/gallery/2011-gmc-sierra-denali-hd/#4
About a month ago Ford announced the ratings for their newly designed 2011 Super Duty to rave reviews. Their diesel engine was listed at 390 horsepower and 735 lbs./ft. of torque. Very impressive numbers when compared to any 2010 diesel truck, but then along came the General.
The all-new Duramax Engine ratings have been released and sit at an impressive 397 horsepower and 765 lbs./ft. of torque. That is a 32 horsepower and 105 lbs./ft. of torque increase over the 2010 Duramax's. GM is also claiming (not official) that driver's could expect to see a fuel range of 680 miles (1095kms) highway on a full 36 gallon (137 liter) tank. So needless to say, the anticipation of the 2011 Duramax Diesel continues to build.
Check the new 2500HD Denali:
http://www.autoblog.com/gallery/2011-gmc-sierra-denali-hd/#4
Friday, February 19, 2010
2011 Chevrolet Silverado HD
I know we may be getting ahead of ourselves here already talking about our 2011 product when we just received our 2010 model line-up, but what we have found out is some pretty impressive information so you may be as interested as we were.
In the quest to comprehensively redesign the Silverado HD chassis to improve durability and ride, while also supporting increased capability, engineers developed 11 all-new, fully boxed frame assemblies. The frames have increased cross sections and use more high-strength steel for greater durability, higher towing capacity and improved ride and handling; the front sections are hydroformed.
The bending and beaming stiffness of the frames is increased 92 percent and 20 percent, respectively, with the fully boxed sections enhancing torsional stiffness by a factor of five. Also, larger engine and transmission mounts, coupled with a 125-percent-stiffer front frame structure, provide greater vibration control, while hydraulic body mounts are incorporated under the cab section on extended and crew cab models for a more isolated feel inside.
Engineers addressed common customer and aftermarket uses when designing the new frames, including adding access holes to the rear frame section to enable easier installation of fifth-wheel/gooseneck-style hitches. Also, the frame-mounted hitch for conventional trailering is stronger, with a box-tube design. It supports up to 16,000 pounds (7,257 kg).
The 2011 Silverado debuted at the Chicago International Auto Show this month with several new upgrades (11 to be exact) that are supposed to rocket the Silverado to the top of towing segments across the HD board. The list is as follows:
1. New Frame - "In the quest to comprehensively redesign the Silverado HD chassis to improve durability and ride, while also supporting increased capability, engineers developed 11 all-new, fully boxed frame assemblies. The frames have increased cross sections and use more high-strength steel for greater durability, higher towing capacity and improved ride and handling; the front sections are hydroformed.
The bending and beaming stiffness of the frames is increased 92 percent and 20 percent, respectively, with the fully boxed sections enhancing torsional stiffness by a factor of five. Also, larger engine and transmission mounts, coupled with a 125-percent-stiffer front frame structure, provide greater vibration control, while hydraulic body mounts are incorporated under the cab section on extended and crew cab models for a more isolated feel inside.
Engineers addressed common customer and aftermarket uses when designing the new frames, including adding access holes to the rear frame section to enable easier installation of fifth-wheel/gooseneck-style hitches. Also, the frame-mounted hitch for conventional trailering is stronger, with a box-tube design. It supports up to 16,000 pounds (7,257 kg)."
2. New and Improved Independent Front Suspension - "A completely redesigned independent front suspension system offers up to a 25-percent greater front axle weight rating – up to 6,000 pounds (2,721 kg) front gross axle weight rating (FGAWR) – enabling a snow plow to be used on all 4WD cab configurations with the available snow plow prep package, while also supporting improved ride and handling characteristics.
Silverado’s signature short-long arm/torsion bar front suspension design is retained, but now features new, forged steel upper control arms that are stronger and lighter than their predecessors. The new lower control arms are made of precision-machined cast iron to handle the greater loads. Five different torsion bar rates support five different front gross axle weight ratings (a single torsion bar was previously used for all models). This helps stabilize the range of trim heights of various models under load, while enhancing appearance, handling, durability, tire wear and alignment. The trim height is adjusted on each bar via a single bolt, easily allowing the height to be changed to account for the weight of a snow plow or other accessories.
The Silverado HD front suspension now uses a pair of urethane jounce bumpers on each side, instead of one, for improved load management; and there’s a new upper shock mount attachment design that’s positively connected to the frame with two fasteners. This design eliminates squeaks and clunks, while supporting higher load capability and increased durability.
Compared to competitors’ beam-axle front suspension, the Silverado’s independent front suspension provides a better ride, more accurate trim height control (with fewer parts) and greater flexibility to adjust the alignment for weight and tire sensitivity."
3. New asymmetrical leaf-spring rear suspension - "Commensurate with the Silverado HD’s greater strength and capability is a rear suspension designed to support greater loads. It features a new, larger asymmetrical leaf-spring design that also contributes to improved ride and handling characteristics.
The asymmetrical design is derived from unequal front and rear spring half lengths, which minimize axle hop and enhance traction control efficiency. 2500HD models feature a two-stage leaf-spring design, while 3500HD models have a three-stage design. All models feature 3-inch-wide (76 mm) leaf springs that are 20-percent wider than previous models.
The larger leaf-spring design supports increased rear gross axle weight ratings across the board. On the 2500HD models, the rating is 6,200 pounds (2,818 kg) – up from 6,084 (2,765). On 3500HD models, the rating increases to 7,050 pounds (3,204 kg) on single-rear-wheel models and 9,375 pounds (4,261 kg) on dual-rear-wheel models – the latter representing a nearly 14-percent increase over the previous 8,200-pound (3,727 kg) rating."
4. Segment-leading towing and payload capability - "Stronger frames, suspension systems with greater weight ratings and enhanced powertrain systems contribute to the Silverado HD’s class-leading towing and payload capability. The specifications charts included below outline capacities for each model and/or configuration, but here are the key facts:
* The maximum conventional (ball hitch) towing rating increases to 16,000 pounds (7,257 kg)
* A Silverado 3500HD crew cab/long box can tow up to 20,000 pounds (9,091 kg) with a fifth-wheel hitch. The 2010 Ram 3500 has a maximum rating of 17,600 pounds (8,000 kg) and the 2010 Ford F-350 is rated at a maximum of 18,800 pounds (8,545 kg). It should be noted that while Ford claimed segment-leading trailering and payload during its recent announcement of the 2011 Super Duty models, no towing ratings were issued
* The maximum payload (3500HD) is 6,335 pounds (2,873 kg) – that’s nearly 11 percent greater than the 2010 Ford F-350’s 5,730-pound (2,604 kg) rating and about 24 percent more than the 2010 Ram 3500’s 5,130-pound (2,331 kg) ratings. Again, while claiming segment-leading payload for the 2011 Super Duty models, Ford did not announce the ratings"
5. New Duramax and Allison Transmission combination - "Helping the new 2011 Silverado HD trucks deliver their best-in-class capabilities is a new version of the workhorse Duramax 6.6L diesel and Allison 1000 six-speed automatic transmission powertrain combination. The Duramax 6.6L is more powerful and durable and the Allison 1000 is stronger and helps enable new features, including the exhaust brake system. Together, this improved version of a proven combination is also expected to deliver segment-best fuel economy.
The Duramax 6.6L’s new and improved features include:
•Horsepower and torque expected to top previous model (testing is ongoing – check media.gm.com for updates)
•NOx emissions reduced at least 63 percent over 2010 models
•Quieter operation
•High-pressure (30,000 psi/2,000 bar) Piezo-actuated fuel system for greater fuel efficiency, improved performance and reduced emissions
•Exhaust brake system that enables controlled vehicle slowdown on downhill grades without actuating the brakes
•Selective catalytic reduction after-treatment system using diesel exhaust fluid (DEF) injection to provide the best overall diesel characteristics and performance – with a range of about 5,000 miles (8,000 km) between DEF refills
•Combustion and after-treatment have been optimized to provide about 700 miles (1,125 km) between diesel particulate filter regenerations – a 75-percent improvement over the previous system and significant contributor to improved fuel efficiency, as the regeneration process requires additional fuel
•B20 biodiesel capability for an alternative fueling option
•Internal revisions that improve durability
With nearly 1.3 million Duramax 6.6L engines produced since 2000, they have proven exceptionally durable and dependable. The internal elements that helped build its reputation are enhanced for 2011, including:
•Main bearings’ profiles changed to enhance oil film thickness
•Oil pump flow increased for increased pressure at low speeds
•The turbocharger’s oil circuit is changed to provide increased pressure at the turbo and faster oil delivery
•The connecting rods’ pin ends are modified to provide increased piston support
•New, higher-strength piston design that eliminates bushings to provide lower reciprocating weight
•An EGR cooler bypass reduces high-mileage soot deposits in the cooler and EGR circuit
The enhanced Allison 1000 for 2011 is strengthened to handle the higher torque capability of the new 6.6L Duramax engine, while also helping improve fuel economy and provide seamless assistance with a new exhaust brake system. Greater efficiency is delivered through reduced “spin loss” – meaning, the transmission channels more of the engine’s power to the axles, allowing it to do more with less fuel.
The Allison 1000 also features driver shift control with tap up/tap down shifting and a patented elevated idle mode cab warm-up feature. Also, the tow/haul mode reduces shift cycling for better control and improved cooling when towing or hauling heavy loads. The six-speed configuration retains its two overdrive gears for optimal efficiency.
Performance with the Duramax/Allison combination is also improved over previous models, with preliminary testing showing 0-60 mph times of less than 9 seconds and quarter-mile times of less than 16 seconds in 2500HD models. That’s about 0.3-second and 0.5-second quicker, respectively, than previous models."
6. New Vortec engine and six speed hyrda-matic powertrain - "The venerable Vortec 6.0L gas V-8 with variable valve timing returns to the new heavy-duty trucks, along with a strengthened version of the Hydra-Matic 6L90 six-speed automatic transmission. This combination delivers excellent performance and efficiency, with a greater emphasis on low-rpm power.
A new camshaft profile in the Vortec 6.0L helps the engine produce more torque lower in the rpm band, for improved launch feel and a greater feeling of overall performance at higher altitudes and when towing a trailer.
The 6L90 is enhanced for greater strength, smoothness and quietness via:
•Adding four attachment bosses to the transfer case adapter (4WD models) for increased strength and smoother, quieter performance
•Increasing the cross section size of the transfer case adapter for greater strength
•Adding a new, stronger output shaft
•Adding a new heat shield and vent hose"
7. Exhaust Brake System - "A new feature on Duramax-equipped models is an exhaust brake system. This driver-selectable feature uses the turbine control of the variable geometry turbocharger and the compression of the engine to generate backpressure, slowing the vehicle without applying the brakes. It is a smart system integrated with the cruise control feature and varies the braking to account for the grade and vehicle load.
The exhaust brake system allows for virtually effortless driving and towing, with seamless and quiet operation. It also helps prolong brake life and prevents overheating the brakes on long, downhill grades."
8. Larger Brakes - "Brake feel and performance is greatly improved with the 2011 Silverado HD trucks. The standard four-wheel disc system is completely revamped to deliver smoother, more immediate and confident-feeling performance. Four-wheel, four-channel ABS is standard on all single-rear-wheel models and a three-channel system is standard on dual-rear-wheel models.
The front and rear rotors are larger in diameter – 14 inches (355 mm) – and width on all models to support their increased capacity, weight ratings and trailering ratings, while the calipers are stiffer and stronger. The hydroboost brake booster calibration is revised for reduced pedal effort and the travel of the pedal is also revised for a more comfortable, confident feel.
Larger wheel hub and bearing assemblies complement the new brake system and the rear rotors attach to the wheel hubs for easier servicing."
9. Improved ride, handling, and steering - "Longer wheelbases – ranging from 133.6 inches (3,395 mm) to 167.7 inches (4,259 mm) – and wider front/rear tracks enhance the ride and handling characteristics of the Silverado 2500HD and 3500HD, giving them a greater feeling of smoothness and control.
The longer wheelbases and wider tracks are complemented by the new, stiffer frames, new jounce bumpers, shock mounts and hydraulic body mounts to provide a solid, smooth and isolated driving experience. New shocks were specially valved to support the new trucks’ weight ratings, while balancing excellent ride characteristics.
Also enhancing the driving experience is a revised steering system designed to support the trucks’ greater front gross axle weight rating. It includes a new, larger steering gear, power steering pumps and linkages. The pumps (different parts for gas and diesel models) deliver greater pressure for reduced steering effort in low-speed and parking maneuvers; they are also quieter. On some models, the new linkages feature a compliant joint added at the pitman attachment to enhance handling.
10. Comprehensive safety and functional technology - The 2011 Silverado 2500HD and 3500HD models have a comprehensive roster of safety features and functional technologies that include:
•StabiliTrak electronic stability control system on all single-rear-wheel models
•Larger, four-wheel disc brakes with standard four-wheel ABS
•A new high-strength steel tubular frame cross member that enhances safety and improves crashworthiness
•Seat pelvic/thorax and head curtain side air bags available on 2500HD
•Available rear backup camera
•Segment-exclusive OnStar 9.0
•Trailer sway control system on all single-rear-wheel models
•Hill start assist (standard on single-rear-wheel models)
Trailer sway control system provides an added measure of confidence when towing a trailer. The system senses conditions of trailer sway and intervenes with braking and/or reduced engine power to bring the trailer under control and keep it on its intended path. The system will use electric trailer brakes when a trailer is plugged into the standard wiring harness of the truck and its performance requires no input from the driver.
The hill start assist system is automatically engaged when sensors detect the vehicle is on grade of about 5 percent or greater. It holds the brakes for about 1.5 seconds or until the gas pedal is pressed, preventing rollback – it is particularly effective when towing, giving the driver time to switch from the brake pedal to the gas pedal without rolling."
11. Lives Bigger, drives better, and works harder - "From the available remote starting feature to the unimpeded access offered by the 170-degree-opening rear access doors on extended cab models, the 2011 Silverado HD models live bigger, drive better and work harder. The interiors are refined, with improved quietness and attention to detail, but designed for working. Numerous storage compartments provide covered access for everything from work gloves to laptops.
Indeed, for many owners the Silverado HDs are mobile workspaces, offering mobile WiFi, USB connectivity, Bluetooth connectivity, XM Satellite Radio and a navigation system. Multiple charge points enable multiple electronic devices to operate simultaneously; and when equipped with the available navigation system, XM NavTraffic offers real-time updates of traffic conditions (in selected areas) that can help plan the most effective route to the job site.
Cold-weather customers will appreciate the Duramax 6.6L’s quick, reliable start-up, with a starting time on par with gas engines. Its glow plug cycle time is the segment’s best in all temperatures, taking no more than 3 seconds in temperatures as low as -20 F (-29 C). There’s also a cab heat-up feature that allows the engine to idle faster in low temperatures to warm up the interior faster.
And when you’re on the road, the Silverado HDs take you farther without stopping. A new, 36-gallon (136 L) fuel tank is standard on all models and, with the improved fuel efficiency of the powertrains, enables a cruising range of up about 680 miles (1,090 km) with the Duramax 6.6L. That’s the equivalent of a trip from Houston to Oklahoma City and back to Dallas on a single tank.
Finally, all 2011 Silverado 2500HD and 3500HD trucks work under the best warranty coverage in Canada – five-year/160,000-kilometer limited powertrain warranty, plus roadside assistance, courtesy transportation and other features that provide assurance that Chevrolet backs its trucks confidently."
*All information and quotes taken from www.gminsidenews.com and the GM Press Release from the Chicago Auto Show*
In the quest to comprehensively redesign the Silverado HD chassis to improve durability and ride, while also supporting increased capability, engineers developed 11 all-new, fully boxed frame assemblies. The frames have increased cross sections and use more high-strength steel for greater durability, higher towing capacity and improved ride and handling; the front sections are hydroformed.
The bending and beaming stiffness of the frames is increased 92 percent and 20 percent, respectively, with the fully boxed sections enhancing torsional stiffness by a factor of five. Also, larger engine and transmission mounts, coupled with a 125-percent-stiffer front frame structure, provide greater vibration control, while hydraulic body mounts are incorporated under the cab section on extended and crew cab models for a more isolated feel inside.
Engineers addressed common customer and aftermarket uses when designing the new frames, including adding access holes to the rear frame section to enable easier installation of fifth-wheel/gooseneck-style hitches. Also, the frame-mounted hitch for conventional trailering is stronger, with a box-tube design. It supports up to 16,000 pounds (7,257 kg).
The 2011 Silverado debuted at the Chicago International Auto Show this month with several new upgrades (11 to be exact) that are supposed to rocket the Silverado to the top of towing segments across the HD board. The list is as follows:
1. New Frame - "In the quest to comprehensively redesign the Silverado HD chassis to improve durability and ride, while also supporting increased capability, engineers developed 11 all-new, fully boxed frame assemblies. The frames have increased cross sections and use more high-strength steel for greater durability, higher towing capacity and improved ride and handling; the front sections are hydroformed.
The bending and beaming stiffness of the frames is increased 92 percent and 20 percent, respectively, with the fully boxed sections enhancing torsional stiffness by a factor of five. Also, larger engine and transmission mounts, coupled with a 125-percent-stiffer front frame structure, provide greater vibration control, while hydraulic body mounts are incorporated under the cab section on extended and crew cab models for a more isolated feel inside.
Engineers addressed common customer and aftermarket uses when designing the new frames, including adding access holes to the rear frame section to enable easier installation of fifth-wheel/gooseneck-style hitches. Also, the frame-mounted hitch for conventional trailering is stronger, with a box-tube design. It supports up to 16,000 pounds (7,257 kg)."
2. New and Improved Independent Front Suspension - "A completely redesigned independent front suspension system offers up to a 25-percent greater front axle weight rating – up to 6,000 pounds (2,721 kg) front gross axle weight rating (FGAWR) – enabling a snow plow to be used on all 4WD cab configurations with the available snow plow prep package, while also supporting improved ride and handling characteristics.
Silverado’s signature short-long arm/torsion bar front suspension design is retained, but now features new, forged steel upper control arms that are stronger and lighter than their predecessors. The new lower control arms are made of precision-machined cast iron to handle the greater loads. Five different torsion bar rates support five different front gross axle weight ratings (a single torsion bar was previously used for all models). This helps stabilize the range of trim heights of various models under load, while enhancing appearance, handling, durability, tire wear and alignment. The trim height is adjusted on each bar via a single bolt, easily allowing the height to be changed to account for the weight of a snow plow or other accessories.
The Silverado HD front suspension now uses a pair of urethane jounce bumpers on each side, instead of one, for improved load management; and there’s a new upper shock mount attachment design that’s positively connected to the frame with two fasteners. This design eliminates squeaks and clunks, while supporting higher load capability and increased durability.
Compared to competitors’ beam-axle front suspension, the Silverado’s independent front suspension provides a better ride, more accurate trim height control (with fewer parts) and greater flexibility to adjust the alignment for weight and tire sensitivity."
3. New asymmetrical leaf-spring rear suspension - "Commensurate with the Silverado HD’s greater strength and capability is a rear suspension designed to support greater loads. It features a new, larger asymmetrical leaf-spring design that also contributes to improved ride and handling characteristics.
The asymmetrical design is derived from unequal front and rear spring half lengths, which minimize axle hop and enhance traction control efficiency. 2500HD models feature a two-stage leaf-spring design, while 3500HD models have a three-stage design. All models feature 3-inch-wide (76 mm) leaf springs that are 20-percent wider than previous models.
The larger leaf-spring design supports increased rear gross axle weight ratings across the board. On the 2500HD models, the rating is 6,200 pounds (2,818 kg) – up from 6,084 (2,765). On 3500HD models, the rating increases to 7,050 pounds (3,204 kg) on single-rear-wheel models and 9,375 pounds (4,261 kg) on dual-rear-wheel models – the latter representing a nearly 14-percent increase over the previous 8,200-pound (3,727 kg) rating."
4. Segment-leading towing and payload capability - "Stronger frames, suspension systems with greater weight ratings and enhanced powertrain systems contribute to the Silverado HD’s class-leading towing and payload capability. The specifications charts included below outline capacities for each model and/or configuration, but here are the key facts:
* The maximum conventional (ball hitch) towing rating increases to 16,000 pounds (7,257 kg)
* A Silverado 3500HD crew cab/long box can tow up to 20,000 pounds (9,091 kg) with a fifth-wheel hitch. The 2010 Ram 3500 has a maximum rating of 17,600 pounds (8,000 kg) and the 2010 Ford F-350 is rated at a maximum of 18,800 pounds (8,545 kg). It should be noted that while Ford claimed segment-leading trailering and payload during its recent announcement of the 2011 Super Duty models, no towing ratings were issued
* The maximum payload (3500HD) is 6,335 pounds (2,873 kg) – that’s nearly 11 percent greater than the 2010 Ford F-350’s 5,730-pound (2,604 kg) rating and about 24 percent more than the 2010 Ram 3500’s 5,130-pound (2,331 kg) ratings. Again, while claiming segment-leading payload for the 2011 Super Duty models, Ford did not announce the ratings"
5. New Duramax and Allison Transmission combination - "Helping the new 2011 Silverado HD trucks deliver their best-in-class capabilities is a new version of the workhorse Duramax 6.6L diesel and Allison 1000 six-speed automatic transmission powertrain combination. The Duramax 6.6L is more powerful and durable and the Allison 1000 is stronger and helps enable new features, including the exhaust brake system. Together, this improved version of a proven combination is also expected to deliver segment-best fuel economy.
The Duramax 6.6L’s new and improved features include:
•Horsepower and torque expected to top previous model (testing is ongoing – check media.gm.com for updates)
•NOx emissions reduced at least 63 percent over 2010 models
•Quieter operation
•High-pressure (30,000 psi/2,000 bar) Piezo-actuated fuel system for greater fuel efficiency, improved performance and reduced emissions
•Exhaust brake system that enables controlled vehicle slowdown on downhill grades without actuating the brakes
•Selective catalytic reduction after-treatment system using diesel exhaust fluid (DEF) injection to provide the best overall diesel characteristics and performance – with a range of about 5,000 miles (8,000 km) between DEF refills
•Combustion and after-treatment have been optimized to provide about 700 miles (1,125 km) between diesel particulate filter regenerations – a 75-percent improvement over the previous system and significant contributor to improved fuel efficiency, as the regeneration process requires additional fuel
•B20 biodiesel capability for an alternative fueling option
•Internal revisions that improve durability
With nearly 1.3 million Duramax 6.6L engines produced since 2000, they have proven exceptionally durable and dependable. The internal elements that helped build its reputation are enhanced for 2011, including:
•Main bearings’ profiles changed to enhance oil film thickness
•Oil pump flow increased for increased pressure at low speeds
•The turbocharger’s oil circuit is changed to provide increased pressure at the turbo and faster oil delivery
•The connecting rods’ pin ends are modified to provide increased piston support
•New, higher-strength piston design that eliminates bushings to provide lower reciprocating weight
•An EGR cooler bypass reduces high-mileage soot deposits in the cooler and EGR circuit
The enhanced Allison 1000 for 2011 is strengthened to handle the higher torque capability of the new 6.6L Duramax engine, while also helping improve fuel economy and provide seamless assistance with a new exhaust brake system. Greater efficiency is delivered through reduced “spin loss” – meaning, the transmission channels more of the engine’s power to the axles, allowing it to do more with less fuel.
The Allison 1000 also features driver shift control with tap up/tap down shifting and a patented elevated idle mode cab warm-up feature. Also, the tow/haul mode reduces shift cycling for better control and improved cooling when towing or hauling heavy loads. The six-speed configuration retains its two overdrive gears for optimal efficiency.
Performance with the Duramax/Allison combination is also improved over previous models, with preliminary testing showing 0-60 mph times of less than 9 seconds and quarter-mile times of less than 16 seconds in 2500HD models. That’s about 0.3-second and 0.5-second quicker, respectively, than previous models."
6. New Vortec engine and six speed hyrda-matic powertrain - "The venerable Vortec 6.0L gas V-8 with variable valve timing returns to the new heavy-duty trucks, along with a strengthened version of the Hydra-Matic 6L90 six-speed automatic transmission. This combination delivers excellent performance and efficiency, with a greater emphasis on low-rpm power.
A new camshaft profile in the Vortec 6.0L helps the engine produce more torque lower in the rpm band, for improved launch feel and a greater feeling of overall performance at higher altitudes and when towing a trailer.
The 6L90 is enhanced for greater strength, smoothness and quietness via:
•Adding four attachment bosses to the transfer case adapter (4WD models) for increased strength and smoother, quieter performance
•Increasing the cross section size of the transfer case adapter for greater strength
•Adding a new, stronger output shaft
•Adding a new heat shield and vent hose"
7. Exhaust Brake System - "A new feature on Duramax-equipped models is an exhaust brake system. This driver-selectable feature uses the turbine control of the variable geometry turbocharger and the compression of the engine to generate backpressure, slowing the vehicle without applying the brakes. It is a smart system integrated with the cruise control feature and varies the braking to account for the grade and vehicle load.
The exhaust brake system allows for virtually effortless driving and towing, with seamless and quiet operation. It also helps prolong brake life and prevents overheating the brakes on long, downhill grades."
8. Larger Brakes - "Brake feel and performance is greatly improved with the 2011 Silverado HD trucks. The standard four-wheel disc system is completely revamped to deliver smoother, more immediate and confident-feeling performance. Four-wheel, four-channel ABS is standard on all single-rear-wheel models and a three-channel system is standard on dual-rear-wheel models.
The front and rear rotors are larger in diameter – 14 inches (355 mm) – and width on all models to support their increased capacity, weight ratings and trailering ratings, while the calipers are stiffer and stronger. The hydroboost brake booster calibration is revised for reduced pedal effort and the travel of the pedal is also revised for a more comfortable, confident feel.
Larger wheel hub and bearing assemblies complement the new brake system and the rear rotors attach to the wheel hubs for easier servicing."
9. Improved ride, handling, and steering - "Longer wheelbases – ranging from 133.6 inches (3,395 mm) to 167.7 inches (4,259 mm) – and wider front/rear tracks enhance the ride and handling characteristics of the Silverado 2500HD and 3500HD, giving them a greater feeling of smoothness and control.
The longer wheelbases and wider tracks are complemented by the new, stiffer frames, new jounce bumpers, shock mounts and hydraulic body mounts to provide a solid, smooth and isolated driving experience. New shocks were specially valved to support the new trucks’ weight ratings, while balancing excellent ride characteristics.
Also enhancing the driving experience is a revised steering system designed to support the trucks’ greater front gross axle weight rating. It includes a new, larger steering gear, power steering pumps and linkages. The pumps (different parts for gas and diesel models) deliver greater pressure for reduced steering effort in low-speed and parking maneuvers; they are also quieter. On some models, the new linkages feature a compliant joint added at the pitman attachment to enhance handling.
10. Comprehensive safety and functional technology - The 2011 Silverado 2500HD and 3500HD models have a comprehensive roster of safety features and functional technologies that include:
•StabiliTrak electronic stability control system on all single-rear-wheel models
•Larger, four-wheel disc brakes with standard four-wheel ABS
•A new high-strength steel tubular frame cross member that enhances safety and improves crashworthiness
•Seat pelvic/thorax and head curtain side air bags available on 2500HD
•Available rear backup camera
•Segment-exclusive OnStar 9.0
•Trailer sway control system on all single-rear-wheel models
•Hill start assist (standard on single-rear-wheel models)
Trailer sway control system provides an added measure of confidence when towing a trailer. The system senses conditions of trailer sway and intervenes with braking and/or reduced engine power to bring the trailer under control and keep it on its intended path. The system will use electric trailer brakes when a trailer is plugged into the standard wiring harness of the truck and its performance requires no input from the driver.
The hill start assist system is automatically engaged when sensors detect the vehicle is on grade of about 5 percent or greater. It holds the brakes for about 1.5 seconds or until the gas pedal is pressed, preventing rollback – it is particularly effective when towing, giving the driver time to switch from the brake pedal to the gas pedal without rolling."
11. Lives Bigger, drives better, and works harder - "From the available remote starting feature to the unimpeded access offered by the 170-degree-opening rear access doors on extended cab models, the 2011 Silverado HD models live bigger, drive better and work harder. The interiors are refined, with improved quietness and attention to detail, but designed for working. Numerous storage compartments provide covered access for everything from work gloves to laptops.
Indeed, for many owners the Silverado HDs are mobile workspaces, offering mobile WiFi, USB connectivity, Bluetooth connectivity, XM Satellite Radio and a navigation system. Multiple charge points enable multiple electronic devices to operate simultaneously; and when equipped with the available navigation system, XM NavTraffic offers real-time updates of traffic conditions (in selected areas) that can help plan the most effective route to the job site.
Cold-weather customers will appreciate the Duramax 6.6L’s quick, reliable start-up, with a starting time on par with gas engines. Its glow plug cycle time is the segment’s best in all temperatures, taking no more than 3 seconds in temperatures as low as -20 F (-29 C). There’s also a cab heat-up feature that allows the engine to idle faster in low temperatures to warm up the interior faster.
And when you’re on the road, the Silverado HDs take you farther without stopping. A new, 36-gallon (136 L) fuel tank is standard on all models and, with the improved fuel efficiency of the powertrains, enables a cruising range of up about 680 miles (1,090 km) with the Duramax 6.6L. That’s the equivalent of a trip from Houston to Oklahoma City and back to Dallas on a single tank.
Finally, all 2011 Silverado 2500HD and 3500HD trucks work under the best warranty coverage in Canada – five-year/160,000-kilometer limited powertrain warranty, plus roadside assistance, courtesy transportation and other features that provide assurance that Chevrolet backs its trucks confidently."
*All information and quotes taken from www.gminsidenews.com and the GM Press Release from the Chicago Auto Show*
Wednesday, January 6, 2010
What's the deal with the Duramax Engine for 2010??
Not much has been publicized about the changes that are coming to the Duramax diesel engine, but hopefully after you have read this blog entry, all your questions should be answered.
Why does GM need to update the Duramax just three years after the current engines arrived? As of Jan 1. 2010 federal diesel emission standards state that GM must reduce the amount of nitrogen oxide (NOx) levels by 90 percent that the previous generation Duramax Diesel engine released.
NOx is a major air pollutant that contributes to smog, asthma, and respiratory and heart diseases. It's a byproduct of diesel’s high combustion temperatures.
The newest Duramax diesel engines are now built to meet the strict new clean-air regulations, while still featuring other key improvements in technology and capability. Like today’s Duramax, the Isuzu-GM joint venture engine will continue to be available in a truck and van configuration.
“The new Duramax diesels are based on the same engines that have been around since 2001,” said Gary Arvan, a GM diesel powertrain engineering chief. “The 2500 and 3500 Chevrolet Silverado and GMC Sierra HD pickups receive the high-power LML motor [replacing the 2007-10 LMM], while the 2500 and 3500 heavy-duty vans receive the lower-rated LGH engine [also replacing the LMM]. Both have iron blocks, aluminum cylinder heads, and their [6.6-liter] bore and stroke are unchanged.”
The Allison six-speed transmission will power the mighty LML engine while the LGH will be paired to GM’s 6L90 six-speed transmission, the same transmission used for the 2500 Vortec 6.0L.
The two biggest technical changes to the Duramax are the all-new selective catalytic reduction and enhanced exhaust gas recirculation systems. Which will now allow the engine to produce no more than .2 grams per horsepower/hour and to run on B20 Bi0-Diesel.
The new selective catalytic reduction system requires "diesel exhaust fluid" which is a urea-based solution that will be held in a 5.5-gallon storage tank and injected as a mist into the exhaust gases the Duramax produces. The heat from the exhaust gas will turn the solution into ammonia that in combination with the new catalytic converter, will break the NOx down into harmless nitrogen gas and water vapor.
Where will the fill for this fluid be and how often do I have to add fluid??
The exhaust fluid refill point for the HD pickups is mounted under the hood of the engine, while the vans’ is positioned next to the fuel door on the side of the vehicle. The tank is mounted on the side of the driver-side frame rail.
Diesel exhaust fluid refill intervals will vary depending on the conditions the truck is being used in. Some customers will only have to refill during routine maintenance, such as when the oil is changed, while others will have to top off the tank sooner if their truck is being "worked" more.
When the vehicle is down to the last 1500km range of fluid, warning lights/sounds/messages will begin to notify the driver that a refill is required. If the diesel fluid tank runs out, the truck will go into a "limp-mode" until solution is more added.
"The selective catalytic reduction and diesel-particulate filter systems depend on a diesel oxidation catalyst that’s positioned downstream, behind the engine, to start the NOx and soot-scrubbing processes. The catalyst requires high temperatures to perform. Those temperatures are achieved on-demand by the addition of a new fuel injector that’s been positioned directly behind the exhaust outlet of the Duramax’s variable-geometry turbo instead of using the engine’s eight existing in-cylinder injectors. Fuel is squirted into the hot exhaust and burns, quickly raising temperatures in the catalysts."
"The LML and LGH also make greater use of exhaust gas recirculation across the Duramax’s power band than did the LMM Duramax. The system recirculates a portion of the engine's exhaust back into the engine at a lower temperature. The cooled gases have a higher heat capacity and contain less oxygen than air, lowering combustion temperatures and reducing the formation of NOx. Exhuast gas recirculation is prevalent in today’s clean-diesel engines to reduce NOx, but it’s not efficient enough in its current form to meet 2010 emissions levels in GM’s trucks, hence the use of selective catalytic reduction also."
Power figures have not yet been released for the trucks, but GM has guaranteed that they will at least meet the 360-horsepower and 660 lbs./ft. of torque produced by the previous generation of truck Duramax engines. The van power figures have been released and have increased to 250 horsepower and 500 pounds-feet of torque from today’s 250 hp and 460 pounds feet, so expect to see more power in the truck engine as well.
Hopefully that has answered some of your questions in regards to the changes to GM's diesel line-up for 2010. Thanks for reading!!!
Information gathered from http://www.pickuptrucks.com/
Why does GM need to update the Duramax just three years after the current engines arrived? As of Jan 1. 2010 federal diesel emission standards state that GM must reduce the amount of nitrogen oxide (NOx) levels by 90 percent that the previous generation Duramax Diesel engine released.
NOx is a major air pollutant that contributes to smog, asthma, and respiratory and heart diseases. It's a byproduct of diesel’s high combustion temperatures.
The newest Duramax diesel engines are now built to meet the strict new clean-air regulations, while still featuring other key improvements in technology and capability. Like today’s Duramax, the Isuzu-GM joint venture engine will continue to be available in a truck and van configuration.
“The new Duramax diesels are based on the same engines that have been around since 2001,” said Gary Arvan, a GM diesel powertrain engineering chief. “The 2500 and 3500 Chevrolet Silverado and GMC Sierra HD pickups receive the high-power LML motor [replacing the 2007-10 LMM], while the 2500 and 3500 heavy-duty vans receive the lower-rated LGH engine [also replacing the LMM]. Both have iron blocks, aluminum cylinder heads, and their [6.6-liter] bore and stroke are unchanged.”
The Allison six-speed transmission will power the mighty LML engine while the LGH will be paired to GM’s 6L90 six-speed transmission, the same transmission used for the 2500 Vortec 6.0L.
The two biggest technical changes to the Duramax are the all-new selective catalytic reduction and enhanced exhaust gas recirculation systems. Which will now allow the engine to produce no more than .2 grams per horsepower/hour and to run on B20 Bi0-Diesel.
The new selective catalytic reduction system requires "diesel exhaust fluid" which is a urea-based solution that will be held in a 5.5-gallon storage tank and injected as a mist into the exhaust gases the Duramax produces. The heat from the exhaust gas will turn the solution into ammonia that in combination with the new catalytic converter, will break the NOx down into harmless nitrogen gas and water vapor.
Where will the fill for this fluid be and how often do I have to add fluid??
The exhaust fluid refill point for the HD pickups is mounted under the hood of the engine, while the vans’ is positioned next to the fuel door on the side of the vehicle. The tank is mounted on the side of the driver-side frame rail.
Diesel exhaust fluid refill intervals will vary depending on the conditions the truck is being used in. Some customers will only have to refill during routine maintenance, such as when the oil is changed, while others will have to top off the tank sooner if their truck is being "worked" more.
When the vehicle is down to the last 1500km range of fluid, warning lights/sounds/messages will begin to notify the driver that a refill is required. If the diesel fluid tank runs out, the truck will go into a "limp-mode" until solution is more added.
"The selective catalytic reduction and diesel-particulate filter systems depend on a diesel oxidation catalyst that’s positioned downstream, behind the engine, to start the NOx and soot-scrubbing processes. The catalyst requires high temperatures to perform. Those temperatures are achieved on-demand by the addition of a new fuel injector that’s been positioned directly behind the exhaust outlet of the Duramax’s variable-geometry turbo instead of using the engine’s eight existing in-cylinder injectors. Fuel is squirted into the hot exhaust and burns, quickly raising temperatures in the catalysts."
"The LML and LGH also make greater use of exhaust gas recirculation across the Duramax’s power band than did the LMM Duramax. The system recirculates a portion of the engine's exhaust back into the engine at a lower temperature. The cooled gases have a higher heat capacity and contain less oxygen than air, lowering combustion temperatures and reducing the formation of NOx. Exhuast gas recirculation is prevalent in today’s clean-diesel engines to reduce NOx, but it’s not efficient enough in its current form to meet 2010 emissions levels in GM’s trucks, hence the use of selective catalytic reduction also."
Power figures have not yet been released for the trucks, but GM has guaranteed that they will at least meet the 360-horsepower and 660 lbs./ft. of torque produced by the previous generation of truck Duramax engines. The van power figures have been released and have increased to 250 horsepower and 500 pounds-feet of torque from today’s 250 hp and 460 pounds feet, so expect to see more power in the truck engine as well.
Hopefully that has answered some of your questions in regards to the changes to GM's diesel line-up for 2010. Thanks for reading!!!
Information gathered from http://www.pickuptrucks.com/
Subscribe to:
Posts (Atom)
