GM Tech Link Duramax DPF Soot - Chevy and GMC Duramax Diesel Forum
2011+ LML Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect

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Old 02-11-2012, 07:27 AM   eBay Motors  #1 (permalink)
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GM Tech Link Duramax DPF Soot

Duramax DPF Soot
Level DTC P2463
A Clean Exhaust Filter Message or a Reduced Power Message on the Driver Information Center or an illuminated Service Engine Soon light on some 2010-2011 Express and Savana models and some 2011 Silverado and Sierra models equipped with the 6.6L Duramax diesel engine (RPOs LGH, LML) may be due
to high soot mass accumulation. An intermittent DTC P2463 may be set.
In addition, the Diesel Particulate Filter (DPF) service regeneration function may not initiate when commanded on with the Tech 2. Vehicles that have a high percentage of driving on short trips or in city traffic may be more susceptible to high soot mass accumulation. Complete the current Service
Information diagnosis for any DTCs or symptoms found. If P2463 is the only DTC setting, there is a new calibration that has been released to address the
high soot mass accumulation condition. After installing the latest Engine
Control Module calibration found in TIS2Web, complete a DPF service regeneration. The new calibration will address DTC P2463 when associated
with short trips and city driving. It also will repair the Tech 2 service regeneration operation. Any other driveability symptoms or DTCs must be diagnosed and repaired.

Info on Duramax Diesel Exhaust System Fluid Injector too in the article

http://www.sandyblogs.com/techlink/O...chlink%20F.pdf
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Old 02-11-2012, 11:08 AM   eBay Motors  #2 (permalink)
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now if gm would use the DIC to let people know its time for a regen then they could help the truck by taking a longer highway drive
but GM thinks we are too stupid to do that
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Old 02-11-2012, 11:12 AM   eBay Motors  #3 (permalink)
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Mine has not regened in over 45k. DPF is as clean as a whistle.
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Old 02-11-2012, 11:19 AM   eBay Motors  #4 (permalink)
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Quote:
Originally Posted by Johnasara View Post
Mine has not regened in over 45k. DPF is as clean as a whistle.
Because you did a delete or yours is a pre-regen era?
I hope I'm not showing my ignorance here.
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Old 02-11-2012, 11:22 AM   eBay Motors  #5 (permalink)
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Because you did a delete or yours is a pre-regen era?
I hope I'm not showing my ignorance here.
He hit a speed bump and his fell off.
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Old 02-11-2012, 11:28 AM   eBay Motors  #6 (permalink)
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Originally Posted by TDFDiesel View Post
He hit a speed bump and his fell off.
Damn poor New Mexico roads.....
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Old 02-11-2012, 11:28 AM   eBay Motors  #7 (permalink)
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Originally Posted by Johnasara View Post
Damn poor New Mexico roads.....
One of them there Texas speed bumps got me too..
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Old 09-12-2012, 07:22 PM   eBay Motors  #8 (permalink)
 
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Had this calibration done on my 2011 LML 'cause of the clean exhaust/reduced power message. I was told that under the old settings LML wlould not regen under a load.
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Old 09-15-2012, 01:03 PM   eBay Motors  #9 (permalink)
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^^^^^^^That would make sense to avoid excessively high EGT's but then again isn't this truck made for pulling haha silly GM!!!


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Old 09-15-2012, 03:00 PM   eBay Motors  #10 (permalink)
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Quote:
Originally Posted by cmontagu View Post
Had this calibration done on my 2011 LML 'cause of the clean exhaust/reduced power message. I was told that under the old settings LML wlould not regen under a load.
Nonsense...
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