how do I loosen the tension on the serpentine belt so that I can replace the alternator?
Dec 7, 2008 at 11:20 PM
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SWILLIAMS
✓Experienced Mechanic
597 POSTS
Use a wrench on the bolt that holds the tensioner pulley to the tensioner on the old style units. On the new units a 3/8" breaker bar gets inserted into the square hole so you can move the tensioner.