View Full Version : Bouncing idler

09-12-2008, 05:00 PM
Started the car (1990) from cold this morning, hood opened and noticed that the idler nearest the alternator was bouncing/swinging (towards the pass. side) just a little bit - maybe 1/4" inch swing...it did it 3 or 4 times and then settled down. No noise. No balancer wobble. Belt is used with no breaks, tears, etc.

Why was it jacking around and then stable?

09-12-2008, 06:12 PM
I'd take the belt off and check it out, mine broke apart and the belt wipped up and hit my friend in the face:eek:

Spring might be wearing out?


09-20-2013, 02:26 PM
Interestingly enough, I recently replaced the A/C compressor, which included new clutch and bearing, and now the idler is completely stable…no more bouncing.

09-20-2013, 05:14 PM
Nice 5 yrs later hehehe too cool :-)

09-20-2013, 06:04 PM
I've kept trying over time to find the issue - new belts, tensioner idlers, fresh alternator and water pump, stuff that needed replacing as time went on, but no change. I'm glad it didn't suffer a big fail on the road. There weren't that many suspects left - bett'a late than never :)

Kevin Leitem
09-22-2013, 07:25 PM
Good thing it didn't throw a belt on you that whole time.

09-22-2013, 07:35 PM
It wouldn't dare do that to me :)