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1996 Buick Regal Custom Idle

Tiny
XEPHYS
  • MEMBER
  • 1996 BUICK REGAL
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 132,954 MILES
My wife has a 1996 Buick Regal Custom. She just noticed, today that when she stops, at a stop sign or stop light, the idle goes from from 1 to 1.5 then to.5. Is this something to worry about? If so can I do something to fix it or should it be taken in to a mechanic? Thanks.
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Friday, May 27th, 2011 AT 4:06 PM

1 Reply

Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 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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Friday, May 27th, 2011 AT 5:08 PM

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