99 Chevy Blazer stalling

Tiny
CHEVYFIXER/MUDDER
  • MEMBER
  • 1999 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
OK my 1999 blazer runs good but when I put it in revere it stalls out and some times all power cuts out
Saturday, March 26th, 2011 AT 2:32 PM

1 Reply

Tiny
WRENCHTECH
  • MECHANIC
  • 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.
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Saturday, March 26th, 2011 AT 3:10 PM

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