1989 Buick Lesabre

1989 BUICK LESABRE
181,469 MILES • 6 CYL • FWD • AUTOMATIC
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ROBERTTHORNBURG
  • MEMBER
  • 7 POSTS
I UN HOOKED BATTERY NOW CAR WILL NOT IDLE. WHEN STOPPED & TURN SIGNAL IS ON THE FUEL PUMP SPEEDS & SLOWES DOWN WITH THE TURN SIGNAL OR WHEN STOP & GOING THE FUEL PUMP SPEEDS UP & SLOWS DOWN.
Feb 9, 2008 at 6:10 PM
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MASTERTECHTIM
  • CAR REPAIR CONTRIBUTOR
  • 4,750 POSTS
on this engine 3.1T there is a process to reset the idle using a gm scan tool, but unfortunately you dont have one, i would start by cleaning the idle air control valve and clean out the throttle body and disconnect battery again, reconnect battery and drive vehicle over 40 mph for 5 minutes if at all possible, this is the generic way of setting the iac valve. hope this helps
Feb 9, 2008 at 6:31 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.