1993 Buick Lesabre engine dies right aftsr starting

1993 BUICK LESABRE
194,000 MILES
Avatar
RADGAST14
  • MEMBER
  • 2 POSTS
For months engine fast idle would sometimes not slow down after warming up, when I shut off engine after warming up and restart it would idle at normal speed, today battery went bad and after replacing with a new battery the engine starts right away every time, then dies in one or two seconds, tried disconnecting the battery to reset the computer and it still dies right away.
Jun 1, 2013 at 5:42 PM
Advertisement
Avatar
KHLOW2008
  • CAR REPAIR CONTRIBUTOR
  • 41,814 POSTS
Seems like the idling speed is not correct and I would suggest having the throttle body and IAC cleaned and retest. If it fails to work, you would need to reset the IAC pintle.
Jun 1, 2013 at 11:39 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.