2011 Denali HD Duramax 6.6 Turbo DEF Tank Issues!
2011 Denali HD DRW 4x4 with the 6.6 turbo Duramax. The DEF Tank is full, yet the DIC says that I need to refill the tank and that I am limited to 55mph. After a while it will go down to 5mph. I went to the GMC Dealership and they have not heard of "any issues with the DEF Tank" Ive tried letting the truck run for 1 hour...and that still did not fix the issue. I also drove it 30 miles down the freeway. The truck has 4,000 miles on it. Needless to say, I am NOT a happy owner and maybe I should get a King Ranch or Dodge DRW. I am not the only duramax owner having the issue. Brand new truck and I dont know even know how many miles I have left until it puts me at a crawl. Thanks GM! Quality Product indeed
LB7 Duramax vs 6.0 Powerstroke
04 LB7 duramax has Efi live DSP5, cold air, tts duel lift pump, PPE Boost increase valve, 5" turbo back
Straight pipe MBRP Exhaust RBP tip, gauges, 7" BDS lift, 35x12.50x20 mud grapplers.
05 6.0 Powerstroke has SCT tuned by innovative, gauges, cold air, 4" Exhaust straight pipe, Boost fooler, 6" pro comp lift, 35x12.50x20 trail grapplers
3rd race of the night and D-max came out on top every race