Question about 2008 GMC Sierra 2500HD 2WD
Particulate filters are self cleaning. If the warning light comes on, you will need to take a long drive every so often to get the filter hot (It is a built-in part of the exhaust system.) Some models will also dump extra fuel int the system to help ignite the soot buildup and assist to "clean' the filter.
You need do nothing else; just get it really hot for a while each time the warning comes up. If you ignore it and do only short trips, it will clog up and need replacement.
Posted on Dec 27, 2008
Tips for a great answer:
Jul 10, 2016 | 2008 Ford F 250 Super Duty 4WD
Nov 26, 2012 | 2001 Ford F350 Super Duty SuperCab
Aug 29, 2011 | 2008 GMC Sierra 2500HD 2WD
May 06, 2011 | 2008 GMC Sierra 2500HD 2WD
Jan 02, 2011 | 2008 GMC Sierra 3500HD 2WD
Nov 30, 2010 | 2005 GMC Sierra 2500HD 4WD
Oct 17, 2010 | 2008 Ford F 250 Super Duty 4WD
Jul 20, 2010 | 1994 GMC Sierra
Feb 17, 2010 | 2008 GMC Sierra 1500 2WD
Apr 21, 2009 | 1992 GMC Sierra K1500
823 people viewed this question
Usually answered in minutes!