Please Help No accleration after decelerating! - Ford Powerstroke Diesel Forum
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Old 01-03-2008, 02:21 PM
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Please Help No accleration after decelerating!

The Check engine light comes on and the truck will not accelerate. Then it goes off and everything is fine plenty of power !! But seems when you let off of the gas pedal , the check engine light comes on at it will not accelerate or rev up ( idles fine) then the check engine light goes off and it will accelerate or drives fine . Is it a throttle switch or tps ?? I scanned it comes up with no code. Acts like the throttle cable is not there when the problem occurs . Thanks it is a 99 ford 7.3 with 200k miles 2wheel drive
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Old 01-04-2008, 11:38 AM
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I have and 2000 7.3 and it does the same thing except I don't get the check engine light the accelerator just seems to not work for a second or so and then everything goes back to normal and it seems to do it everyonce and awhile and when decelrating so I need help to
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Old 01-04-2008, 11:45 AM
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you have one of two things going on...

either your throttle position sensor in the pedal assembly is bad.....

or the wires for the overdrive button that come out of the shift handle have rubbed on the steering column under the plastic cover and are shorting out the cuircuit.....if this is the case eventually it will get bad enough to blow the fuse....
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Old 01-04-2008, 01:50 PM
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I will check the wires and where is the position sensor to be found in the pedal assembly thank you very much for your answer.
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Old 01-04-2008, 09:17 PM
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I think it is the throttle switch under the pedal !! There is company selling the sensor for 59.00 , I actually cleaned mine with brake cleaner today and it has not acted up . I will order a new switch to be on the safe side. Thanks
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Old 01-04-2008, 09:21 PM
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When mine did it I took the pedal out and soaked the switch and pot with wd-40 and put the pedal back in. Took about 10 minutes and cost nothing. That was a year or two ago and I have had no problem since.
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