Discussion Starter · #1 ·
Help! I have an 03 cummins I purchased recently. The truck runs fine except when you get on it around 2k rpm the turbo seems like it lags and doesn’t build boost. Recently was towing something was going up a hill and when it hit 2k rpm the truck lost all power and blew white smoke out of exhaust. Turned the truck off and turned back on just fine. Doesn’t over heat or anything. Thought the turbo went bad so swapped it out for another but now it did the same thing any suggestions as to what it might be?