what would cause the serpentine belt to slide into the motor? we've checked the pulleys and all are in line, what could cause this to happen?

Asked by Jul 30, 2015 at 05:45 PM about the 2002 Pontiac Grand Am GT

Question type: Maintenance & Repair

the car came in with no belt, we replaced the tension pulley, checked all pulleys,

3 Answers

58,735

Did you replace the tensioner assembly? Perhaps the spring on the tensioner is worn out. Also make sure that all the pulleys are lined up and the belt is routed correctly. If someone else replaced the crankshaft pulley with one for a supercharged engine there'll be 2 pulleys on it. I believe that the inner pulley is for the accessories and the outer one is for the supercharger only. So use the inner pulley if that's the case. HTH. -Jim

1 out of 1 people think this is helpful.
17,270

Was this a new belt that you just installed ? That is one thing about a serpentine belt you think you can remember how it went on but you don't so many combinations you may think you got it right but it is not. Most part stores like auto zone will give you a print out of how the belt is routed on the engine for free.

1 out of 1 people think this is helpful.
545

Are the edges of one pulley missing ?

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