Question about 1997 Ford Escort
When I start the car the revs accelerate at intermittent times. High revs upto 3000 without touching the accelerator for a few seconds (10)
Embarassing at the lights when it seems I've still got my foot on the accelerator
Appreciate the "Ask Me".
The technically proper diagnostic procedure would be to have the car's computer scanned and the readings interpreted for errors. The error codes would determine the "probable" defects.
To my knowledge, there were at least three (3) Technical Service Bulletins for '97 Escorts:
1. July '98 - wiring harness/loom for power control module;
2. Oct '98 - change IAC valve with a new design/version; and
3. Oct '98 - change power control module (PCM).
All of the above directly affects idling (among others) and are strictly dealer repairs. If however you would prefer a DIY (do-it-yourself), then you would probably want to focus on:
a. locate the PCM and connect a grounding wire to pin 28;
b. remove, check/clean/replace the IAC valve and the throttle body/assy with special precautions. Pls reference this page for additional information;
c. or it maybe as simple as a return spring out of position for the idle level. I believe their are available aftermarket idle repair kits for Escorts that are comparable if not better.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
Good luck and kind regards.
Thank you for using FixYa.
Posted on Jul 14, 2008
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