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01-07-2021, 10:59 AM | #1 | |
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Location: Farmersville, Texas
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DTC Code P2463 Duramax DPF Filter - Soot Accumulation
My truck will not go into the automatic Regeneration to clean the Diesel Particulate Filter (DPF). Check Engine Light came on, it is throwing code P2463 DPF Soot Accumulation. My scanner shows back pressure is only 0.1 PSI at idle, and normal driving around 2,000 RPM it reaches a high of only 1.17 PSI.
It usually does a Regen about once per tank of fuel, (elevated idle speed of 800 instead of 640RPM for about 20 miles or so). But it is not entering regen. Now it goes into the power-limiting mode after about a minute of driving. When in the limp mode, it will definitely not get the exhaust hot enough to regen. And without a Regen, it will not clean the DPF. Vicious circle. Any ideas on how to get it to clean the DPF? Thanks. Truck has 114K miles on it now. I have heard GM extended the Emissions Warranty on the diesels to 120K, but not sure what years or models?
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-Jim 2015 Silverado Crew Cab 2500HD 6.6 Duramax 4x4 2002 Silverado Crewcab HD 2500 6.0 4x4 Sold 281K Great Truck 1970 Chevelle SS454 (Gave to my son 9 years ago for his 18th birthday. Yeah, I know, crazy, right? Thank goodness he doesn't drive it the way I would, -er, did...). 1971 Monte Carlo SS454 Drag Racer. The old girl finally got new paint! 1968 Camaro SS (New race car project). Caged, Tubbed, Back-Half/Ladder Bars. Rolling Chassis (For now). Last edited by Ol'Jim; 01-07-2021 at 11:01 AM. Reason: Correct typo in Title |
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01-14-2021, 06:18 AM | #2 | |
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Re: DTC Code P2463 Duramax DPF Filter - Soot Accumulation
This seems like a chicken and egg quandry. Is the truck still under its powertrain warranty?
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