i have a 2003 gmc sierra 2500hd 6.0 when driving running at reduced power on 2003 GMC Sierra 2500 HD

the truck will run at reduced power and show the same on disply shut tr off and re-start and will run fine until it does it again is not aheating problem.thank you

by in Duluth, MN on April 11, 2013
Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
1 answer
ANSWER by , April 11, 2013
SCAN CODES AND POST SO WE CAN ADV