2004 Chevy Trailblazer tune up?

2004 CHEVROLET TRAILBLAZER
280,000 MILES • 6 CYL • 4WD • AUTOMATIC
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ERIC HOPKINS
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car drives fine untill i turn heat or a/c on then it wants to stall. if turned off a/c -or heat it returns back to normal no stalling what do you think the problem is....tune-up?
Sep 28, 2010 at 11:23 AM
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WRENCHTECH
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Is the air conditioner working normally?
Sep 28, 2010 at 11:28 AM
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ERIC HOPKINS
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i think the a/c works ok. i really dont use it often.. especially when the car wants to stall
Sep 28, 2010 at 11:34 AM
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WRENCHTECH
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If this is just an idle stalling issue you may have a bad IAC ( idle air control) but try 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.
Sep 28, 2010 at 11:37 AM
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