My dealer kept telling me it was my fuel filter and it was costing me about $ 150.00 to do a fuel filter change. What I told them was I would be driving along and drop to 2000 RPM and would not go above that. So I would change the filter and it would work for about 500 miles than it would happen again and the jerks at my dealer ship said it was the Filter again.

Can any one tell me what is going on. When it is running it could move a mountain

I have tried to look at manuals but th4e DuraMax is like top scercet

 

if you put this in the duramax section you'll get a better responce. This is the introduce yourself section.

 

Howdy! Welcome to Diesel Bombers! You're Going to Like it Here!

 

holy macaroni i am also experiencing this problem this is such a pain in the ****. i just started to think my dealer is squeezing every penny they can get from my pocket. i should really get a trusty independent mechanic than relying on my dealer. there gmc parts and labor are below the belt. arrrrrrrgggghhhh. :
ooopss sorry i forgot to make introduction. i just use search button a lot. i will just post this in the right section! ronald here from texas!