WHEN THE CAR IS IDLING OR BEING DRIVEN THE ...

1992 Mercury Marquis

Tiny

Anonymous

November, 10, 2012 AT 3:51 PM

When the car is idling or being driven, the engine will rev for a minute then go back to idle or to the normal acceleration level. What causes this?

FOUND 4250 RELATED QUESTIONS

1 Answer

Tiny

hmac300

November, 10, 2012 AT 4:08 PM

Scan for codes and check fuelpressure, clean throttle plate with choke cleaner on both sides. Then check for a vacuum leak

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