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1995 Jeep YJ IDLE Issues

Tiny
SIRJEEPSTER95
  • MEMBER
  • 1995 JEEP WANGLER YJ
  • 4 CYL
  • 4WD
  • MANUAL
  • 148,000 MILES
My '95 Jeep Wrangler w/2.5L just started idling high. Sometimes when started it will be at normal idling speed, 900/1000 rpms. Within a few minutes of driving or idling it will climb to almost 2000 rpms. This is causing shifting problems, fuel consumption problems and can't be good.
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Tuesday, April 12th, 2011 AT 12:04 AM

1 Reply

Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
First look for any possible vacuum leaks and repair them.
You may have a bad IAC ( idle air control) but try eliminating any vacuum leaks and cleaning the throttle body first. Remove the intake snorkel, have someone hold the throttle wide open for you and scrub the back side of the throttle plate and surrounding bore with an old tooth brush and some carb cleaner. Be sure to spray some into the small holes next to the throttle plate. That should help stabilize the idle. If it still has a problem, replace the IAC.
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Tuesday, April 12th, 2011 AT 12:23 AM

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