High RPM's

Tiny
ADAM PAREDES
  • MEMBER
  • 1998 FORD RANGER
  • 2.5L
  • 4 CYL
  • 2WD
  • MANUAL
  • 164,000 MILES
High rpm. Does a bad fan clutch cause this?
Wednesday, August 8th, 2018 AT 11:12 AM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon.

There is a valve called an idle air control valve. It controls idle speed. It is mounted on the throttle body.

I attached a picture. Remove the wire connector by the left arrow. If the idle drops to idle, then the valve is bad. If it does not, then there is another issue.

It could be a vacuum leak or the throttle body plate full of carbon.

Roy
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Wednesday, August 8th, 2018 AT 12:23 PM

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