Engine Idles too High (gas intake)

Tiny
NICKDAVIC
  • MEMBER
  • 1993 FORD RANGER
  • 6 CYL
  • 2WD
  • MANUAL
  • 216,000 MILES
My truck is idling at too high an RPM (2,500-3,000) Cann't find anything wrong with gass pettel or cable under hood. Any idea how I could adjust it?
Thursday, October 23rd, 2014 AT 11:32 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,779 POSTS
FIrst, have you checked for vacuum leaks? Have you checked the idle air control solenoid? Also, check down in the bore of the throttle body and make sure there is no carbon build up on the sides of the throttle plate or in the bore which could cause it throttle place to stick.

As far as the idle, it is controlled by the PCM. It isn't something that is adjustable.
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Thursday, October 23rd, 2014 AT 5:42 PM

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