96 PS Power Loss and then Recovers

[bilderberger]

1996 PS, Engine will not rev up , no throttle response, once warmed up will run down the road a quarter mile, and then i lose all throttle response, engine returns to idle. I checked the UV harnesses, and changed the Passenger side gasket, with the passenger side rear harness ( when i unplugged the harness, it was filled with oil), I checked the ICP sensor, and there was no oil coming up thru the sensor. Currently not getting a "check engine" light, but it had come on 1/2 a dozen times the day it started this behavior. When running down the road, all of a sudden i will get white smoke out of the tailpipe, and then the throttle will not respond. Truck comes to a stop, continues to idle, and within a couple minutes will respond again and then goes for another short distance and does the same thing.

[Bentpushrod]

I'm having a very similar problem with a 94.5 Powerstroke I just purchased. It will start just fine, as soon as I let out the clutch and hit the accelerator pedal it won't rev up and the check engine light comes on. I let off the pedal and the check engine light will go off. It just idles and won't rev up at all. I shut it off, restart and most of the time it will be fine. Today, It did it again, I shut it off, restarted it and took off. About half a mile down the road it lost power and went back to idle with the light on. I pulled over, restarted it numerous times before it finally quit acting up.

Just wondering if you have figured yours out yet?

[matthewy8]

without knowing what the codes are its hard to tell. a failed tps will do the same thing. you may want to start looking there.

[madpogue]

^^^^^ +1; or perhaps the idle switch.