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So finally got my truck running due to a fuel issue. Anyways been driving it for a week or two now, and I have a strange problem idk if it has been covered here or not.
Driving around tow ect if you come to a light or whatever and stop the rpms stay at 800rpm.
Now if you shift it out of gear and back into drive the rpms settle back down around 650. Where is should be.
My guess is the torque converter is not disengaged all the way when it stuck at high rpm (800-900) for this situation.
No cel, slippage, or crazy noises
2002 7.3 power stroke all stock right now @160k black crewcab
Previous owner had a tunner on it but not anymore. Could it have smoke the trans???
Could possibly be your Idle Validation Switch on the go pedal. You could try cleaning it with compressed air. I think if the torque converter was still engaged it would stall the engine.
I also have this exact problem now, pull up a light and rpm drops to 800
and sometimes 1000 and then down 650. I believe your problem is with
the TPS. My Ex has the adjustable pedals and tps is a $800.00 list price fix.
For the f250 I think it under $50.00.
I also have this exact problem now, pull up a light and rpm drops to 800
and sometimes 1000 and then down 650. I believe your problem is with
the TPS. My Ex has the adjustable pedals and tps is a $800.00 list price fix.
For the f250 I think it under $50.00.
Yes mine its Lariat so adjustable pedals.
I don't understand the difference between in gear or out of gear wether its the TPS or the idel validation switch??? Please elaborate
Oh previous owner did replace tps within a year before I bought it two months ago
My guess is the torque converter is not disengaged all the way when it stuck at high rpm (800-900) for this situation.
That makes no sense at all. The torque converter should NOT be disengaged. If the engine is running the torque converter is engaged and NEVER becomes disengaged. If you meant unlocked instead of disengaged, then the engine idle would be too low, not too high.
Second time around for me, First time same symptoms as this time, with the added benefit of no throttle response at all. Was in central Mexico (as in the Country of Mexico) the first time. Called my Ford Dealer and they told me to stomp on the throttle, It worked, problem Fixed-for awhile anyway. Stomped on that pedal all the back to NE Iowa. Dealer replaced TPS, throttle position sensor assembly under warranty. I’m not sure but I do believe the idel validation switch is part of that same assembly.
Second time around for me, First time same symptoms as this time, with the added benefit of no throttle response at all. Was in central Mexico (as in the Country of Mexico) the first time. Called my Ford Dealer and they told me to stomp on the throttle, It worked, problem Fixed-for awhile anyway. Stomped on that pedal all the back to NE Iowa. Dealer replaced TPS, throttle position sensor assembly under warranty. I’m not sure but I do believe the idel validation switch is part of that same assembly.
Your definitely right on mine there is only one pigtail going to the tps. One group of wires. To clear I do have the adjustable pedals
So did a little more reading and I think i found it.
The tps sensor
I noticed it stays at that 800-900 rpm after driving around at or above 2,000 rpm with normal driving. Also I dont the think the transmission has anything to do with yelling the pcm where to idel.
Another thing is I dont hear the distinctive click when the throttle is off and you step on it....maybe needs adjusting, but can you adjust the tps with the moving adjustable pedals???
There is only one connection going to it.. help
I think it is just out of wack due it never going to normal idel, and it luggs alot. Instead of down shifting