1998 GMC Safari IDLES HIGH

1998 GMC SAFARI
150,000 MILES • 6 CYL • 2WD • AUTOMATIC
Avatar
ALEX86
  • MEMBER
  • 1 POST
WHILE MY CAR IS PARKED IT IDLE TOO HIGH.
Apr 8, 2010 at 8:46 PM
Advertisement
Avatar
TOOOMANYTOYS
  • CAR REPAIR CONTRIBUTOR
  • 513 POSTS
Try cleaning the throttle body and idle air control valve with throttle body cleaner and a tooth brush. If that doesn't help try listening for a vacuum leak. May have to smoke test if small vacuum leak.
Apr 8, 2010 at 9:00 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.