2003 Buick Lesabre idle high after warm up

2003 BUICK LESABRE
96,538 MILES • 6 CYL • FWD • AUTOMATIC
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MARK THIBODEAUX
  • MEMBER
  • 1 POST
Start up engine cool, idles normal. when it gets to normal engine temp.the idle will go up to 2500-3000 rpm.
Aug 17, 2009 at 6:33 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Clean out the idle air control valve and test the TPS and MAP sensors.
Aug 17, 2009 at 9:01 PM
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