dle around 1500 rpm, then drop to 200 rpm

2002 FORD WINDSTAR
147,000 MILES
Avatar
NATEHEMPHILL
  • MEMBER
  • 1 POST
When air conditioner is running vehicle will idle around 1500rpm, then drop to 200 rpm continuously. If i shut off ac vehicle idles around 800 rpm.

I have change the idle air control valve twice and each time it solves the problem for about a week. I have been told that there are setting steps to take to get a vehicle to recognize a new sensor is this true?

What do I need to do to get my wife's can running proper? I also have changed isolator bolts and put on a new maf sensor.
Aug 23, 2012 at 2:25 AM
Advertisement
Avatar
ASEMASTER6371
  • ✓ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
remove the battery cable wait 10 seconds and re install. that clears the adaptive memory.

make sure the base isle is set also

Roy
Aug 23, 2012 at 2:34 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.