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1989 Pontiac running rough and stalling
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dlcarp
Novice
Dec 22, 2011, 10:58 PM
Post #1 of 2
(1309 views)
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1989 Pontiac running rough and stalling
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I have a 1989 Pontiac Booneville
3800 V6 Engine
The engine idles rough and stalls when stopped.
Engine runs fine until it reaches operating temperature.
Any ideas or suggestions? Where to start looking at first?
Thanks
dlcarp
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Hammer Time
Ultimate Carjunky
/ Moderator
Dec 23, 2011, 4:49 AM
Post #2 of 2
(1283 views)
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Re: 1989 Pontiac running rough and stalling
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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.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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