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1997 Ford Explorer engine reving

Tiny
FUFFA30
  • MEMBER
  • 1997 FORD EXPLORER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 152,000 MILES
The engine sometimes revs up ans down when idling, both in park and in drive, when stopped at a light. Doesn't do it when I take it to the mechanic but they thought it might be the antifreeze, so they changed it. Only helped a little. Any idea?
Wednesday, February 10th, 2010 AT 6:57 PM

2 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,328 POSTS
THe coolant in the engine has nothing to do with the engine's idle. Has the check engine light come on? Have you checked for vacuum leaks?

Let me know.

Joe
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Thursday, February 11th, 2010 AT 10:31 AM
Tiny
FUFFA30
  • MEMBER
  • 2 POSTS
Check enigine light just came on tonight. No I haven't checked for vacuum leaks.
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Friday, February 12th, 2010 AT 12:20 AM

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