03 tx pwr stroke
New member
Driving down the road at about 55, went to pass a car, about 3/4 throttle. Truck took off like normal. All of a sudden there was a big "bang", almost like the trans banging into gear, and the rpms dropped to to idle and couldn't accelerate any more. Let off the gas and coasted a bit, and went back to normal, plenty of power and shifting fine. Little while later, went to leave a stop sign, normal acceleration, and it did the exact same thing. Let off and it comes out of it and drives normal. I started thinking trans. Then it did it again at 45 mph leaving a stop light and I noticed the rpm drop. If it was trans, wouldn't the rpms stay or rev up? Therewasn't any sudden deceleration or anything like that. So I changed tunes, still does it. Put stock tune on, still does it. Pulled codes, only got camshaft position sensor code. Replaced cam sensor, still does it. I can manage to drive it on the stock tune but I have to really take it easy. Any ideas? Sorry for the long post but I really need help. I posted a video on PSE FB page, can't load a vid from my phone.