90 Pontiac Sunbird rev’s high in drive
Printed From: the12volt.com
Forum Name: Miscellaneous - Off Topic
Forum Discription: Topics that just don't fit anywhere else.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=19880
Printed Date: July 14, 2025 at 2:16 PM
Topic: 90 Pontiac Sunbird rev’s high in drive
Posted By: Raymond Nielsen
Subject: 90 Pontiac Sunbird rev’s high in drive
Date Posted: October 09, 2003 at 3:49 PM
I was given this car, but it idles high when I shift into drive but returns to normal when in park or neutral, feel as if i had cruise control at higher speeds?
Replies:
Posted By: dadshop
Date Posted: October 19, 2003 at 10:07 PM
Raymond the first thing to do is to take the car to a shop and at least have the computer scan diagnostic done to see if it's thrown a code, which will be stored in the computer itself. Then at least you would have a starting point. It's possible that it might be the Idle Air Controls (IAC) it's function is to " Adjust air flow in the idle circuit to maintain idle speed under various load conditions is fuel injected engines." Keep in mind that these new cars are controlled by the computer. E-mail me back on the codes and let me know what you find.
-------------
Dads Shop
|