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i think u will need to locate ur tensioner pulley or that's what i call it it should be to the left front of the engine u should be able to put a wrench size unknown and push down to loosen the belt. the pulley will not connect to anything but a bracket to the engine . sorry if this doesnt help u

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Q: How would you loosen the serpentine belt on a 4-cylinder 1999 Chevy S-10 to replace the alternator?
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