These things really scream up to 2400rpm during a regen. Its common, particularly on 2001to2007 lb7 models, for the filter housing before the filter to develop cracks and leaks in the oring, allowing air to enter the system. The emissions equipment for diesel trucks has changed quite a bit through out the years. Before you take your lmm in for warranty work, force a regen so when they look at the ecm it doesnt say if was 26,000 miles since your last regen. My 2002 is more of a streetcompetition vehicle and is the most modified of the bunch. Diesel particulate filter the duramax engine is equipped with a diesel particulate filter dpf that, by design, will filter or trap particulates. It did several cycles of regen while i continued highway driving then powered down. The dpf, or diesel particulate filter, is a filter that catches soot, or. They looked at it, might have tried to realign it and found that. Savana, and duramax are trademarks andor service marks of general motors llc, its subsidiaries, affiliates, or licensors. Apr 03, 2014 two exhaust regens are better than one getting all that nasty soot and exhaust contamination out of the exhaust system dpf diesel particulate filter takes time and heat to do a proper job. The weight of passengers, cargo and options or accessories may reduce the amount you can tow. My last oil life indicator only gave me 968 miles before it was telling me to change the oil again. Our partners will collect data and use cookies for ad personalization and measurement.
Check out the deal on banks 66793 derringer tuner with idash 1. What to look for when buying a used duramax wish i knew this. Two exhaust regens are better than one getting all that nasty soot and exhaust contamination out of the exhaust system dpf diesel particulate filter takes time and heat to do a proper job. How to buy a used duramax, including the common problems associated with certain. Its common, particularly on 2001to 2007 lb7 models, for the filter housing before the filter to develop cracks and leaks in the oring, allowing air to enter the system. The fusion software required for updating your product on your computer is included in this package as a cd. The dpf system will store soot during this type of operation, but the engine will not get hot enough to engage regeneration mode. The duramax has long been susceptible to fuel starvation failures because the engine doesnt use a lift pump to feed the primary pressure pump. Today i successfully completed a manual regen while my truck was at my house, pretty impressive and scary at the same time. Ok so i need some help trouble shooting the def system on my 20 chevy duramax. Can i force a manual regeneration of my dpf on 08 duramax. Please read carefully before proceeding to program your vehicle. The dpf is located under the vehicle in the exhaust system. This manual describes features that may or may not be on the vehicle.
Jul 31, 2006 2007 chevy silverado 2500hd ltz duramax dyno drags and mud we test the new 07 chevy 2500hd duramax lmm. You only need to do a manual regen when the engine asks for it, which hopefully is rare. Increased emission regulations began to alter the diesel landscape significantly in 2007. Canyons 7700lb rating requires 2wd crew cab model with available duramax 2. The first step to take is to do a parked regen where the diagnostic software comes in handy to force it to happen.
This is not to say that these vehicles cannot be modified, but if one does so it should be done smartly. The engine was competitively powerful, offered impression fuel economy, and over the years has proved itself to be a reliable competitor in the light diesel market. I found a tsb on the duramax diesel forum a couple of weeks ago that has chevrolet correct this problem. The best thing you can do to prolong the life of your dpf is when the engine goes into regen drive the truck preferably 30mph until it completes the regen.
The mild tow and mileage tunes may not have this issue, but since the hot and race tunes have tripped the message three times in a period. Duramax diesel exhaust aftertreatment system youtube. Used 2007 chevrolet silverado 2500hd for sale with photos. Duramax diesels forum duramaxdiesel technical duramax tuning, logging, and gauges lmm forced regen. Gm slapped with classaction suit for alleged duramax. The first step to take is to do a parked regen where the diagnostic software comes in. Follow the instructions located in the fusion section at the back of this manual. A manual transmission was optional for these model years, though the 5 speed. Due to epa federal mandates and stricter emission regulations, various components were. Im thinking of moving up to a 34 ton truck for better for capacity. Meaning the light would come on for one or the other code for about a. Just attach the tool to the dlc and access the modules function to clean the dpf. Index a good place to quickly locate information about the vehicle is the index in the back of the manual.
Some of the performance tunes ive tried cause the clean exhaust filter message to come up, likely because the power ranges of these tunes clog the filter faster than a stock tune. I have had mine start and stop the regen process up to 5 times before it got low enough that it. I did not know the manual regen is for sitting still only, with a 2500 rpm rev for 20 minutes and tons of noise. Although if it has been pulling hard and in regen i will let it idle down for a few minutes before i shut it down. Used duramax diesel 6 speed manual transmission cars in. We will be looking at trucks within the next year or so. When the light with the exhaust symbol goes on, its time to regenerate.
If your vehicle has the duramax diesel engine, refer to the duramax diesel supplement for additional and speci. Search over 34,500 listings to find the best local deals. A forced regen occurs when soot builds up inside the diesel particulate filter dpf to the point that the vehicle is no longer operable. Products in this section are designed to work on 2006 and 2007 classic body style 6. Periodically engage in steady speed cruises to insure your dpf regenerates. Took my 2500hd in today to have the service department look into an occasional regen exhaust smell that fills the cab while sitting at a light. Our list of 18 known complaints reported by owners can help you fix your 2007 chevrolet silverado 2500 hd. Apr 02, 2015 same thing you would do with any other truck, shut it off. Once cleaned, it is a good idea to insure you take.
This article breaks down how regen works and what other components are in the emissions system. Banks 66793 derringer tuner w idash data monster 1719. Midway through the 2007 model year, gm launched the lmm duramax. Marked by a dramatic hood scoop, the system drives cool, dry air into the engine for sustained performance and. And when you do, you gotta do the whole park, release brakes, park, maybe clutch on some, cruise off, then push the start regen button for about 5 seconds. May 26, 2017 the 2017 chevrolet silverado hd features an allnew, patented air intake system. This manual describes features that may or may not be on. Problem with your 2007 chevrolet silverado 2500 hd. Duramax lmm dpf and ecm programming kennedy diesel. And the engine and the isuzu 6h diesel engine, the. I have an 2009 hd 2500 duramax with 75k miles on it. Is there another option other than answered by a verified chevy mechanic. To clean a dpf using manual regeneration mode, you can use a specific service tool like the maxicheck pro from autel or other service tools for diesel engines. Duramax lmm dpf and ecm programming dos and donts last updated 31810 the release of the lmm duramax has brought forth new emissions and new forms of tamper detection by gm.
Same thing you would do with any other truck, shut it off. When the duramax was introduced in 2001, it was a significant improvement from the 6. Sitting in a cubevan, bored, while i wait for it to perform a parked regen. Includes key design features, engine specs, horsepowertorque ratings, and more. Other tuners have this feature, and for us guys keeping the doc and dpf this would be a great help. Doing a regen has no effect on def system operation. Holding your key in start for longer than 15 seconds at a time will cause your if your vehicle has the 6. The dpf will fill up with soot during typical operation, such as stopandgo driving.
Many problems on trucks manufactured in 2007 or later have something to do with the. That year, ford, dodge and gm all released engines. When combined with the required allison sixspeed auto manual transmission, the. The problem seems to be the alignment of the down tube from the turbocharger. I have had mine start and stop the regen process up to 5 times before it got low enough that it did not need to try and clean the filter again. I have been getting the cel code p0420 and p20ee on and off for a several months now. The only thing he did say was that, based on the sensor readings, he thinks the dpf is plugged and needs to be replaced. Take your duramax equipped truck out for an extended straight drive, such as on the highway.
For vehicles first sold in canada, substitute the name general motors of canada company for gmc and chevrolet motor division wherever it appears in this manual. Nick good point, but any engine related problem according to my friend must be diagnosed starting with an ecm scan, now at the top of the list. These things really scream up to 2400rpm during a regen compared to the larger engines im used to. Some tools will have a builtin stepbystep process, or just a simple yes or no function. Es exl loaded truck leather diesel lariat fx4 trd hemi fj duramax 2. Actually its does when that message come on that means the regen didntcant happen. When combined with the required allison sixspeed automanual transmission, the. With the beta release of dvts bidirectional controls, we released forced regeneration functions for those of you who are still running dpf on your lmm. Problems chevrolet chevrolet silverado 2500 hd 2007 chevrolet silverado 2500 hd.
It is an alphabetical list of what is in the manual. Per dealer def fluid tested fine and nox sensor tested fine. My dpf regen comes on at least once a week and stays on for a long time. About every 2 or 300 miles depending on how its driven and amount of idling time. Jun 04, 20 to clean a dpf using manual regeneration mode, you can use a specific service tool like the maxicheck pro from autel or other service tools for diesel engines.
To perform regeneration, the vehicle must be driven at a speed of over 30mph for several. Used 2007 chevrolet silverado 2500 hd crew cab engine chevy offers two engine choices. Does anyone know of a programmertuner available for 2016 2. You must travel above 30 mph for at least 20 minutes until the clean filter message goes off. Mar 08, 2012 can i force a manual regeneration of my dpf on 08 duramax. Use your vin to verify if your engine is an lly or lbz to verify, check the 8th digit in the vin number. What is a dpf or particulate filter, why is it there, and can i remove it. The suit alleges that 20112016 chevrolet silverado and gmc sierra pickups equipped with a duramax diesel, have an engine built to cheat emissions standards by. But thats not to say that the problem is egr and its just not acting up when hes plugged in.
These systems still use a diesel particulate filter dpf which requires regeneration, but at less frequent intervals than with the 2007 epa. Without gauges you likely will not know when it occurs, however if it does not go thru a complete regen after 3 or 4 attemps the overhead will display a warning that your 80% full and a regen is required. Find the best used car deals for your search duramax diesel 6 speed manual transmission. For vehicles first sold in canada, substitute the name general motors of canada limited for gmc and chevrolet motor division wherever it appears in this manual. Duramax buyers guide tips for buying a used duramax diesel. The duramax engine needs to see steady cruise speed, not stopandgo traffic, in order to properly enter regeneration mode. Have you ever wondered how regen works in your lml duramax. He did a manual regen on it about 6 weeks ago and its acted up twice since then. Gm 85300 and 85400 coverage 20062007 llylbz duramax. Unfollow duramax service manual to stop getting updates on your ebay feed.