1993 Ford Tempo High Idle in Park

FORD TEMPO
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LNEGANT
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  • 1 POST
I have 1993 Ford Tempo, automatic, 4 cyl. engine. 180000 miles. When I put it in Park, the engine revs up really high, and continues to idle at that speed until I put it into Drive or Reverse. Also does the same in Neutral. Do you have any ideas on what may be wrong and can I fix it myself?
Apr 4, 2006 at 8:30 AM
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LOSONE
  • ✓Experienced Mechanic
  • 1,616 POSTS
Sounds like a bad idle air controller. It is the long silver thing bolted to the intake manifold. Try cleaning if not replace it.

Also check for a vacuum leak. Sometime the brake booster will cause that problem. Good Luck
Apr 4, 2006 at 8:34 AM
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Suggested Repair

Clean the idle air controller on the intake manifold, and replace it if cleaning does not help. Also check for a vacuum leak, including a possible brake booster leak.

Conversation Summary

A 1993 Ford Tempo with a 4-cylinder automatic revs high and stays at a high idle in Park and Neutral, returning to normal in Drive or Reverse. The expert suggested a faulty idle air controller, recommending cleaning or replacement, and also advised checking for a vacuum leak, possibly from the brake booster.

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