1997 Ford Taurus idle problem after warm up

Tiny
HITECHREDNECK187
  • MEMBER
  • 1997 FORD TAURUS
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 158,747 MILES
1997 Ford Taurus GL with 3.0. The car runs fine until it warms up and when the fan engages the idle drops dramaticly and when driving it cuts off? I checked the idle control motor and it is working. Do you have any direction in which you can steer me to? Again when the fan is on it idles poorly and when it goes off it idles fine again.
Thursday, May 19th, 2011 AT 12:27 PM

2 Replies

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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Thursday, May 19th, 2011 AT 1:48 PM
Tiny
HITECHREDNECK187
  • MEMBER
  • 2 POSTS
Thank you for your reply. I ended up cleaning the MAF really good and the problem did not happen again as of this moment.
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Thursday, May 19th, 2011 AT 4:26 PM

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