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serpentine belt

Old 12-31-2015, 06:54 AM
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Default serpentine belt

My serpentine belt keeps sliding forward on my fan clutch any guesses why cause I can't figure it out.
Old 12-31-2015, 08:31 AM
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Year model and engine please
Old 12-31-2015, 11:22 AM
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Could have a bad idler pulley, or another bad pulley, or the belt isn't tight enough. Check all pulley bearings for play.

I also would recommend getting the Gatorback belt as it has a much grippier surface
Old 01-01-2016, 01:24 PM
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Originally Posted by wauto
Year model and engine please
Sorry I didn't say in the first place it's a 96 4.0
Old 01-01-2016, 02:19 PM
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Harmonic balancer
Old 01-01-2016, 10:12 PM
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Originally Posted by Turbo X_J
Harmonic balancer
fixed my problem. Belt kept slipping off. Replaced it and haven't had a problem since.
Old 01-02-2016, 07:02 AM
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Here's what one looks like:
Attached Thumbnails serpentine belt-harmonic-balancer-failure.jpg  
Old 01-02-2016, 09:38 AM
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Originally Posted by cruiser54
Here's what one looks like:
My balancer is in good condition bit it may have a bit of a wobble
Old 01-02-2016, 01:31 PM
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I replaced my harmonic balancer too, but I found that if the belt isn't tight enough, it'll still fall off.

Learned the hard way when I was going 90 on a 5 mile bridge and ended up getting towed home and cleaning my whole engine compartment off from coolant and tranny fluid.
Old 01-07-2016, 11:57 PM
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Originally Posted by thatXJguy
I replaced my harmonic balancer too, but I found that if the belt isn't tight enough, it'll still fall off.

Learned the hard way when I was going 90 on a 5 mile bridge and ended up getting towed home and cleaning my whole engine compartment off from coolant and tranny fluid.
I learned a similar lesson at 3 a.m. in a church parking lot in a snow storm
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