Working on my buddy's 2011 Duramax with a DEF problem. He already installed a tuner voiding the warranty, so the dealer wouldn't cover it. I told him he needs to just delete all that garbage.
DEF Diesel Exhaust Fluid What is it? How does it work?
DEF Fluid on Amazon HERE→http://www.amazon.com/gp/product/B004OEH3WQ/ref=as_li_tf_tl?ie=UTF8& camp=211189&creative=373489&creativeASIN=B004OEH3WQ&link_code=as3&tag=httpw wwyou00f-20 DEF Diesel Exhaust Fluid What is it? How does it work? Here's an explanation of what it is and how it works. To learn more about it visit http://www.cumminsfiltration.com/html/en/products/fuel/diesel_emission/air_ shield.html
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