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1988 Ford Escort Throttle Positioning Sensor

Tiny
DAYDREAMERTRICIA
  • MEMBER
  • 1988 FORD ESCORT
Engine Performance problem
1988 Ford Escort 4 cyl Automatic 245000 miles

I am trying to replace the TPS in my car. It has been losing power while I am driving and rpm's rev up and down while car is idling. Does this sound like the problem to you? Could you give me any assistance possible please?
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Friday, May 9th, 2008 AT 7:49 AM

1 Reply

Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
For the rough idling I would suspect a faulty IAC moduel or a vaccum leak, same for the loosing power overtime.

But I wouldnt be to quick for ruling out the TPS, take and check its voltage at closted throttle, then WOT then slowly sweeping from closed to WOT, should be steady.
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Friday, May 9th, 2008 AT 8:33 AM

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