How to check fast idling speed control device

Tiny
ROLF72
  • MEMBER
  • 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.
Sunday, September 11th, 2011 AT 8:19 AM

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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Sunday, September 11th, 2011 AT 1:32 PM

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