Pnied919
Junior Member
I have an 04 2500 with the 5.7 and I tried to pull a 12’ trailer and I had to down shift to 3rd to stay above 40 going up hills. I have replaced plugs and coil packs 12k miles ago and 1 O2 sensor and map sensor within the past 1k and just replaced the tb without anything changing and help would be appreciated.