Mechanics

HOW TO CHECK FAST IDLING SPEED CONTROL DEVICE

1996 Isuzu KB280 • 280,000 miles

On start up, it is idling to slow I forgot to mention, that my ISUZU is a TURBO DIESEL.
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Rolf72
September 11, 2011.




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.

Wrenchtech
Sep 11, 2011.


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