Duramax Lifetime Supporter
Join Date: Aug 2008
Location: Sothern, Co
Is your air filter an oil type? The Duramax at 3000 rpm and 20 pounds of boost will consume the air in an 8x10 room in 1 min. The massive amount of air flow will pull some of the oil from the filter if it is over oiled and get on the mass air flow sensor and cause some strange results. I would try the fuel filter first and a can of MAF cleaner to the sensor if the filter does not help. 11000 is not to bad on the filter but it only takes 1 tank of bad fuel to plug a filter. A change in the shifting is also an indication of fuel filter plugged.
Clifford is a 2005 GMC Loaded SLT 2wd with; true cold air intake mods, ported LBZ turbo inlet mouthpiece, AFE Inter cooler pipe, Diamond Eye down pipe, BD drivers side manifold, V2 radiator, thermostst controlled oil cooler, Edge CTS2, 19.5" aluminum wheels with factory lug covers, Goodyear G647RSS 225/70/19.5, BF Xenon 6000k Headlights Low & Hi, Air lift Remote control 5000# air bag system, Tork Lift Stable Loads, EZ down Tailgate assist, Put co S/S mud flaps, compete interior wood dash kit, Dual Liner 3 piece bed liner with rubber floor mat, Roll-N-Lock tonne cover with tail gate lock, and AVS in channel vent visors.
GM DRW club member #5