1998 buick regal dies when I left off the gas pedal

1998 BUICK REGAL
150,000 MILES
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RCCORN
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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
Oct 27, 2013 at 8:44 AM
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WRENCHTECH
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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.
Oct 27, 2013 at 9:53 AM
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RCCORN
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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
Oct 27, 2013 at 5:12 PM
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WRENCHTECH
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You're welcome. You should still clean the throttle body if you haven't done that already. It effects the stability of the idle.
Oct 27, 2013 at 5:16 PM
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RCCORN
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I will do that first thing tonight....once again thank you....
Oct 28, 2013 at 2:47 AM