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1990 Chevrolet S10 Question: How do I know when to replace the idler pully?

 

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chappy7358, 4.3L V6, Kalamazoo, MI, August 04, 2009, 13:37
 Rookie

the serpentine belt came loose from the assembly but did not break. I found the doughnut shaped pully had fallen off from the bearing race. It was laying down under the radiator fan. Are there two pieces or did something break?

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  • Answer #1

    August 04, 2009, 14:15
     Journeyman

    Sounds like the tensioner just came apart and needs to be replaced. Probably a good idea to replace the belt also. Hope this helps

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