Why is it idling all over the place, and the rpms shooting up and down when it gets hot/

2000 DODGE INTREPID
160,000 MILES
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ZACH.EMBRY
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When i drive it slows down then speeds up, if i come to a stop it dies.
Nov 2, 2011 at 6:40 PM
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WRENCHTECH
  • ✓ASE Certified Mechanic
  • 20,761 POSTS
  • ASE Certified Mechanic
First eliminate all vacuum or air leaks in the system. 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.
Nov 2, 2011 at 7:08 PM
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ZACH.EMBRY
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what else could be a problem
Nov 2, 2011 at 8:10 PM
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WRENCHTECH
  • ✓ASE Certified Mechanic
  • 20,761 POSTS
  • ASE Certified Mechanic
You haven't done what I suggested yet.
Nov 2, 2011 at 8:14 PM
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