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1998 Buick Regal dies when I left off the gas pedal

Tiny
RCCORN
  • MEMBER
  • 1998 BUICK REGAL
  • 150,000 MILES
My 1998 buick regal starts fine if I hold gas pedal in but dies as soon as I left off gas pedal. It ran fine beore that and I shut it off.A hour later I got back in it when it started my problem. What is wrongwith it. This
Sunday, October 27th, 2013 AT 8:44 AM

4 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,758 POSTS
You may have a bad IAC ( idle air control) but try eliminating any vacuum leaks and 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.
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Sunday, October 27th, 2013 AT 9:53 AM
Tiny
RCCORN
  • MEMBER
  • 3 POSTS
Thankyou very much for replying back. Your answer was the solution.I went ahead and bought a new IAC and it fixed the problem. Thanks again. Its nice to have people out there who can help people like us out. Tuanks again
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Sunday, October 27th, 2013 AT 5:12 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,758 POSTS
You're welcome. You should still clean the throttle body if you haven't done that already. It effects the stability of the idle.
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Sunday, October 27th, 2013 AT 5:16 PM
Tiny
RCCORN
  • MEMBER
  • 3 POSTS
I will do that first thing tonight. Once again thank you.
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Monday, October 28th, 2013 AT 2:47 AM

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