1999 Other Jeep Models idle

Tiny
BYRONHAYNES
  • MEMBER
  • 1999 JEEP
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 99,000 MILES
Idles roughs and sometimes idles real fast whether cold or hot engine.
Thursday, May 1st, 2008 AT 2:51 PM

1 Reply

Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
I would suspect a vaccum leak or maybe a sticky EGR valve since its only once in a while the high idling.

If those all check out good check the pcv valve, if its good it should rattle.

If all else fails probably a dirty throttle body or bad IAC module.
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Thursday, May 1st, 2008 AT 6:46 PM

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