So, by relying on an external fuel source for a dpf regen, the lml kept its oil free of any fuel dilution. A diesel particulate filter dpf is a device that traps the soot and unburnt fuel from diesel combustion. Hollow out the cat, program the egr shut and rock on. My guess is it will be some time before you start seeing those engines used in tractors. Gm15876232main factory oem diesel particulate filter dpf 07. Periodically engage in steady speed cruises to insure your dpf regenerates. For systems that have been damaged, det also manufactures lowercost oem replacement diesel oxidation catalyst doc and dpf filter systems for the 08 to 10 ford power stroke, 07 to 10. Emissions control technology, oxidizing catalyst, dpf, egr. The duramax v8 engine is a general motors diesel v8 engine family for trucks. Purchase factory oem diesel particulate filter dpf 07.
Went through the simple process of flashing and selecting the 4 tunes available. Gm slapped with classaction suit for alleged duramax emissions. Most of the time you have a haze during a region is because you have a cracked dpf and it is allowing the particles to escape the exhaust the white smoke you see is also unburnt diesel fuel that escapes through the cracks. While various versions of the engine have surfaced over the years, all generations of the duramax are based on the same foundation. After driving the diesel for the first miles, i decided to pull the trigger on the duramax tuner. Diesel exhaust fluid and the 2011 duramax diesel davis. The time bomb under your diesel diesel power magazine. P across the dpf that the ecm triggers a passive regen on 2015 lml. The dpf, or diesel particulate filter is a separate canister that is found on the lmm or 2007. This proven powerplant gets the job done while being friendlier to the environment. If the waitto start light comes on, the glow plug system is required and operating. That year, ford, dodge and gm all released engines designed to meet the new particulate matter pm and nitrogen oxide nox limits mandated by the environmental protection agency.
After youve decided on the dpf delete tuner your next decision is the exhaust. Gm22799974 factory oem diesel particulate filter dpf 11 6. May 26, 2017 the 2017 chevrolet silverado hd features an allnew, patented air intake system. The fifth generation commonrail v8 was given the rpo code lml. 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. Dpf removal is one of the best upgrades you can do to increase fuel mileage and reliability.
This engine was initially installed in 2001 chevrolet and gmc trucks, and has been an option since then in pickups. With its advertised output of 397hp and 765 pounds of torque, the lml was the most powerful duramax to date. The name duramax was chosen for the new engine to signify durability and maximum power, cleanliness, and fuel economy. The diesel particulate filter dpf is best described as the ticking time bomb in most modern diesels. The dpf filter has a service life of 5000 hours and that will be more than i will use this machine by a long shot. In order to meet everincreasing emission standards and keep up with the joneses at the time, fords upcoming 6. Chevrolet began using def in response to the new 2010 guidelines by the epa. Duramax dieselsilveradothe diesel particulate filter. According to chryslers service masters def should be refilled every 10k miles and will not trigger cel if frozen. How to buy a used duramax, including the common problems associated with certain. The ecm will start a regeneration to clear this filter based on distance, fuel, and engine run time since last dpf regeneration, and exhaust differential pressure across the dpf. I know this is the first year it was used with the duramax and i dont particularly like buying something that that was a first year modification like that because im the type that likes to give it a few years to allow them to get the bugs out. You must travel above 30 mph for at least 20 minutes until the clean filter message goes off.
This arises fault in the engine and an orange light starts to display on the dashboard as a kind of warning that vehicle. Ive got a friend that just got a lmm truck, it was wrecked an my buddy rebuilt it. The dpf block causes back pressure that leads to lower the performance and increases the fuel consumption. The aim is an 80% cut in particle emissions but the technologys not without problems and our patrols are often called to cars with a blocked dpf. The regen mode regeneration mode for emissions on my 2015 gmc duramax stinks. The computer can actually calculate how many grams of soot are in the filter based on info from all the sensors. I just did the second dpf regeneration on a 2012 sierra 2500hd duramax 6. The dpf can be removed, but this technically renders the truck illegal for highway use. The duramax block and heads are poured at the defiance gm powertrain foundry in defiance county, ohio. The 20062007 model year pickups did not have any major reliability. Got the dreaded def quality poor light this morning on my 20 duramax. Id like to gather all the useful info in one place about dpf removal. A diesel particulate filter dpf is a device designed to remove diesel particulate matter or soot from the exhaust gas of a diesel engine. I have 08 duramax dpf deleted efi live with 4inch exhaust for a while now ive had the same problem.
What model year engine did gm start using def in duramax. Reprograms the ecu for trouble free maintenance voice prompted menu system reads and clears dtcs fully. Removing or modifying it is illegal in the us even for offroad use. Dodge is slated to go away from the troublesome dpf and start using def in all the 6. Duramax buyers guide tips for buying a used duramax diesel. Similar to egr problems, the dpf can become clogged up from city driving where the car does not get up to temperature. There are some links to some additional resources below. The dpf is installed in the exhaust system behind the catalytic converter, and its appearance resembles the catalytic converter. The new engine created and built by dmax ltd was a 6,599 cubic centimeter 6. Duramax diesels forum duramax diesel technical duramax hard parts lml lml white smoke. Water vapor, nitrogen and reduced emissions exit the exhaust system.
Midway through the 2007 model year, gm launched the lmm duramax. When the duramax was introduced in 2001, it was a significant improvement from the 6. The 20062007 model year pickups did not have any major reliability concerns. Common issues and problems we see in the shop with the lb7. The active regeneration process is triggered when a pressure difference between the inlet and outlet of the dpf is observed, but you wont notice. Along with the large egr and passive catalytic converter, the lmm was the first duramax to be fitted with a dpf. Jun 19, 2017 i had a request for some engine revs so here ya go. Senix and smotrs and others will attest to this option b. The dpf, is responsible for eliminating particulate matter from the exhaust system, specifically the soot that is emitted by diesel engines. Crew cab short box extended cab long box extended cab short box crew cab long box.
The fast warmup glow plug system makes the waitto start light stay on for a shorter amount of time than most diesel engines. Diesel particulate filters are effective in removing 85 100 % of the soot emitted by diesel engines. Looking into deleting the dpf and def setups, accompanied by a. Top issues with power stroke, duramax, and cummins engines. Starting in 2008, ford began using diesel particulate filters dpf on their diesel trucks. The dpf was designed to allow the duramax to comply with the extremely strict new diesel emissions regulations. Increased emission regulations began to alter the diesel landscape significantly in 2007. The dpf info thread chevy and gmc duramax diesel forum. Well duramax engines have been a mainstay technology for chevrolet and gmc since first installed. Jul 22, 2008 i have a 2007 diesel duramax diesel 6. These systems still use a diesel particulate filter dpf which requires regeneration, but at less frequent intervals than with the 2007 epa.
They are government mandated, and are required to be on the truck to be street legal. For those that use their lmm for racing only and offroad, removing the dpf has shown substantial gains. 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. Putting the scr in front of the dpf drastically increases the need for active.
History of the duramax diesel engine diesel power magazine. The first generation 2000 gm debuts the lb7 duramax diesel engine with 300 hp and 520 lbft torque in 01. Duramax dieselsilveradothe diesel particulate filter is. Im thinking about going and looking at a 2011 sierra tomorrow but im a bit curious about the def. What years are pre def emissions dodge cummins diesel forum. Just wanted to share my story and see if anyone else has experienced this.
Nov 24, 2006 the dpf is installed in the exhaust system behind the catalytic converter, and its appearance resembles the catalytic converter. Dpf was chopped off in the wreck, now its just straight exhaust far. Here is the wikipedia page on them, its a good overview on them. Diesel exhaust fluid is a nonflammable fluid comprised of 33% ammoniabased urea and 67% purified water. My lb7 lifted with 35s got better mileage than this stock truck. You can get an idea of exactly how the truck sounds. Modern diesel cars since 2009 have to be fitted with a diesel particulate filter dpf in the exhaust to stop this soot passing into the atmosphere. The improved duramax uses the latest emission control technology.
Purchase factory oem diesel particulate filter dpf 11 6. Gm did not want to increase engine gas recirculation egr or use other inefficient methods to reduce cold start emissions, so it departed from the docdpf. I plan on purchasing this year to avoid having to mess with the scr system for the life of the tractor. Top issues with power stroke, duramax, and cummins engines by david chick january 19, 2017 if you stop and think about it, the word diesel conjures up a lot of things durability, torque, and towing power, just to name a few. Hey fellas, i got a problem that i know i cant figure out on my own so lets get to it.
In addition to a new or upgraded doc diesel oxidation catalyst, scr selective catalytic reduction and dpf diesel particulate filter, the new lml duramax also incorporates the use of a new fluid that is injected into the exhaust system, which is a mixture of 32. Sometimes at 6070 mph i try to accelerate the trans kicks down rpm goes up to 2500rpms and truck hardly moves. Def usage in chevrolet vehicles is necessary for the scr selective catalytic reduction process which is the main strategy used by chevy and other manufacturers to reduce emissions from their vehicles. The lmm duramax brought 365hp and 660 lbft of torque to the table along with its emissions equipment, including exhaust gas recirculation, a diesel oxidation catalyst and a diesel particulate filter. Banks because its 1 dpf friendly, and 2 a signal modifier, and when removed is impossible for a dealer to know was ever there. Truck will run normally until heater can unfreeze fluid. Going from the lb7 to the lmm was a definite change. Jan, 2018 this is a quick video going over the history of the duramax diesel engine including the lb7, lly, lbz, lmm, lml, l5p, and lwn. The 0710 gm duramax is equipped with a diesel particulate filter. Gm slapped with classaction suit for alleged duramax. Speaking of fuel, the lml was the first duramax to be able to run on a b20 blend of biodiesel.
Gm duramax complaint 052517 hagens berman national class. Dpf is blocked when the dpf of the vehicle is clogged with the dust, smoke or soot. Mar 06, 2017 i have 08 duramax dpf deleted efi live with 4inch exhaust for a while now ive had the same problem. This is the electronics only for use with a racing exhaust kit or maintenance pipe. The l5p duramax is the latest version of the duramax v8 diesel engine. The 9th injector down pipe seems to have a bad connection and.
For systems that have been damaged, det also manufactures lowercost oem replacement diesel oxidation catalyst doc and dpf filter systems for. I remember driving with daughters boyfriend in his powerstroke. We use cookies to give you the best possible experience on our website. Marked by a dramatic hood scoop, the system drives cool, dry air into the engine for sustained performance and. Theres two primary things to consider when removing the dpf. The lmm engine code 6 debuted part way through 2007 and ended production with the start of the 2011. How to buy a used duramax, including the common problems associated with. The 2014 specs for the 5115m say that it still has the dpf system. The duramax engine needs to see steady cruise speed, not stopandgo traffic, in order to properly enter regeneration mode. The whole reason the diesel particulate filter came along was to clean up the diesel car image euro 5 emissions, 2009. The ninth injector injects diesel into the exh pipe to bring the exhaust gases up to a higher temperature, the def dosing injector will not dose until a regen process takes place so it can reduce nox emissions its usually found near the scr and dpf filters. How not to do a dpfdoc delete, and how to fix it when your.
Dont be afraid to go def putting your fears of emission. Jul 01, 2011 for systems that have been damaged, det also manufactures lowercost oem replacement diesel oxidation catalyst doc and dpf filter systems for the 08 to 10 ford power stroke, 07 to 10. Wait until the light turns off before starting the engine. Similar to egr problems, the dpf can become clogged up from city driving where the car does not get up to temperature the whole reason the diesel particulate filter came along was to clean up the diesel car image euro 5 emissions, 2009. Fords diesel particulate filter dpf exhaust filter. With the lml engine came whats known as 9th injector technology, which supplies fuel to the dpf during regeneration. Starting in 2011 diesel exhaust fluid is used to treat nox emissions, in addition to the egr and dpf treating the carbon emissions. Melted dpf after the first 20 miles with duramax tuner. Mar 01, 20 the first generation 2000 gm debuts the lb7 duramax diesel engine with 300 hp and 520 lbft torque in 01.
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