Hyundai Genesis Forum banner

2011 Coupe - Occasionally idle goes up and down from 750-2000 and repeats

843 views 1 reply 2 participants last post by  TKJode 
#1 ·
Hello

I noticed yesterday I was sitting at a light, either in neutral or with the clutch down, and the revs in idle were going up and down constantly every couple of seconds.

Any ideas?

It hasn't done it today and I drove over 50 miles so far without an issue.

Thanks!

Paul
 
#2 ·
Some folks have had issues with sensors that causes this. Also a bad hose/connection could be causing a vacuum leak, which is a common cause of Idle hunting.

Usually a vacuum leak is constant... you might have a sensor on the way out. Maybe get under the hood and check wiring & connections just for good measure in case of something obvious.
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top