AutoZone Product & HowTo Info | | Belt Tensioner

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    Belt Tensioner

    Belt Tensioner Operation:

    This device functions as an idler pulley and is located on either the inside or outside of the accessory drive belt. Its provides the correct tension for initial belt adjustment and maintains this critical tension adjustment during vehicle operation. It can be found on conventional V-belts and the newer serpentine ribbed belts.

    How To Instructions:

    Inspect - Check for obvious problems.
    Replace - Out with the old, in with the new.

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