serpentine belt keeps popping off

06-16-2004, 08:09 AM
Hi Guys, I have a 92 s-15 jimmy I just replaced the alternator, serpentinr belt, and tensioner on. My problem is that the belt keeps popping off soon as I start the truck. I check the routing and it was good. I do remember reinstalling the alternator with the negative battery conection still on and a spark happened. Could I have damaged the alternator and caused my problem? Please help!

06-21-2004, 11:53 PM
You damaged nothing when you had the spark, as far as the belt goes check all the pullies to see if they trun freely with the twist of a hand, except for the crank of course. while u are at it check all the pullies to see if any of them woble if any of them do that is the problem fix that and u shouldnt have any problem also check and recheck the placement of the belt of all the pullies to make sure that the belt is in the right place when u put it on

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