My engine is revving when im sitting still what could be the cause of this?
Monday, March 30th, 2009 AT 1:11 PM
1 Reply
KHLOW2008
MECHANIC
41,814 POSTS
Hi caprock,
Surging are due to excessive air getting past the throttle body and possibilities are :
1. Idle speed too high.
2. Faulty Intake Air Control valve.
3. Vacumn leakage.
4. Clogged coolant hoses to IAC or lack of coolant in cooling system.