This is topic Help with belt tensioner - VIDEO INSIDE in forum Tech Talk at Northern California Ford Owners  .


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Posted by MustangCCH (Member # 12345) on :
 
Belt tensioner on a 1991 Mustang 5.0 - Just replaced it (again). Earlier this year bought one from autozone and just replaced it again (still under warranty). Noticed that it makes a sound on a cold start. And it jumps a lot when the engine is running. I think it should be pretty still. Any ideas? Thanks in advance

Here is a small clip of the belt tensioner with the car running

YouTube clip
 

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Posted by 90 7up lx (Member # 10304) on :
 
Pull the belt off and check the other pulleys, one of the other ones may be starting to bind up....
 

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Posted by MustangCCH (Member # 12345) on :
 
So I installed a stock tensioner and the problem went away. I guess those AutoZone one's are just bad. Thanks for the help
 

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