• Tiny
  • ibgonzales
  • 2002 Jeep Liberty

Engine Mechanical problem
2002 Jeep Liberty 6 cyl Four Wheel Drive Automatic 161600 miles

idle does not work during start up. It takes almost ten minutes till the engine warms up then engine idle works.

Monday, August 16th, 2010 AT 8:25 PM

1 Answer

  • Tiny
  • Wrenchtech
  • Expert
  • 19,802 posts

You may have a bad IAC ( idle air control) but try 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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Monday, August 16th, 2010 AT 8:31 PM

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