Close
Car Questions
RepairPal is your advocate for car care advice and guidance

Why does your 1994 f250 5.8l have high idle after warm

(1994 Ford F-250)
in Portland, OR on October 12, 2009
truck runs for a couple of miles till warmed up, then idle kicks up to about 2100rpm, and won't kick down. Turn truck off then back on, it runs normal. I have cleaned throttle body, replaced idle air control valve.
Displaying 2 answers & 0 comments
Popular Answer
on May 05, 2010
i have the same problem ,with my f-250 4x4 automatic trans 5.8l.. also when warm (running temp)trans shifts eratically and ocassionally loses trans fluid out of the over flow (in bellhousing)i have read about these problems on many sites i have not yet come across a solution.intermitently it will run perfect.turn off and back on doesnt help with mine ,but if it did i would check the tps (because it resets itself every time you start the engine)
on July 18, 2010
If you unplug the wire going to you air idle control valve and it idles ok.....chances are that you pcm is bad that is what happened to my 1994 e-150 5.8 liter ford van...hope this helps you
Get a repair estimate
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide.
Or interested in getting a repair? Find a Shop

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
It got stuck and i think it might have got hot trying to get it out of the mud,someone told me it’s a module in the t...
We have changed the ipr sensor , cam sensor,oil pressure senor ignition turns over but wont fire
Didn't find what you were looking for?