Mechanics

INFINITI J30 HOWLING PROBLEM

1997 Infiniti J30 • 180,000 miles

The center idler pulley was making a howling noise so I replaced and I noticed that the timing belt seemed loose. I got to the automatic tensioner and found it was not touching the belt. I pried on it was able to extend and tighten up the belt and it seems to be holding, but is there a way to determine if the automatic tensioner is defective? Does the tension on the belt change increase as the car runs? Does the tension increase with RPMs? Thank you.
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Frank fixing
March 12, 2013.




No, constant tension. It has failed and needs to be replaced

Roy

ASEMaster6371
Apr 24, 2013.


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