car goes dead

2005 BUICK CENTURY
227,000 MILES
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MICHAELRULER
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  • 1 POST
My 2005 Buick Century cranks, but goes dead as soon as I take my foot off the accelerator. As a result I can't get out of the parking lot. Any idea what's happening?
Apr 1, 2011 at 6:46 PM
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WRENCHTECH
  • CERTIFIED EXPERT
  • 20,761 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.

Apr 1, 2011 at 6:53 PM