idle promblems

2004 FORD MUSTANG
76,400 MILES • V8 • 2WD • MANUAL
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KENNEMRL
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  • 1 POST
i have a 2004 mustang GT 4.6 sohc i m getting a irratic idle, aand some times it surges when im driving in 1st and 2nd gear
Dec 20, 2010 at 10:42 PM
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WRENCHTECH
  • ✓ASE Certified Mechanic
  • 20,761 POSTS
  • ASE Certified Mechanic
You may have a bad IAC ( idle air control) but try 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.
Dec 21, 2010 at 12:23 AM
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