1998 Pontiac Grand Prix no idle

1998 PONTIAC GRAND PRIX
210,000 MILES • 6 CYL • 2WD • AUTOMATIC
Avatar
KEAN_MCENTIRE
  • MEMBER
  • 2 POSTS
My car will start, but not idle. I have replaced the IAC valve, and it worked in the drive way. I didn't drive it that day. Today, 2 day s alter, after driving the car for 10 miles, the same thing has happened again.
Will start,drives, but not idle. Car dies at about 750RPM.
I wonder if my next step is to replace the mass air flow (MAF) or the throttle position sensor.
Ant ideas?
May 2, 2009 at 10:39 AM
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.
Advertisement
Avatar
JDL
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 16,098 POSTS
Hello, usually with an idle issue, I take the throttle-body off, give it a good cleaning, make sure the passages are clear, go from there.

Are there any codes? Some of the national brand autostores will check codes for free, if you can get down there.
May 2, 2009 at 11:10 AM
Advertisement
Avatar
KEAN_MCENTIRE
  • MEMBER
  • 2 POSTS
just returned from autozone, no codes. in addition, when starting car to go to autozone, the car started, idled and drove fine. at the store, a 2 mile drive, the car would not idle again.
May 2, 2009 at 11:42 AM