rjones4

1999 3/4 Ton Dodge Ram, 5 speed, 160,000 miles. Runs and starts fine most mornings. Always starts fine. Some starts it doesn't have enough power to pull a hill without going to third gear. Then it may take off and run great the rest of the trip. Next time I start it to go to work, it may run perfect or run like a dog. No smoke no missing, just run perfectly and then the next second not have any power. It will turn 3000 rpm or more if you need it but with no power. I have ordered a lift pump but I am starting to think it may be the wastegate due to very little change for a month. It may be in the "low power" mode maybe a little more time lately. I recently pulled my 27' camper on a short trip and it pulled it fine but it seemed to be a good day. One day we ran to town and it wouldn't pull itself over a mountain in NW AR empty without going to third. Then it instantly "picked up" and ran great the rest of the trip. Any help, please?
Rock

MnTom

You should get it scanned for codes. Kinda sounds like a VP problem...........