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1The tensioner is spring loaded, and no adjustment is provided, or required. 21 is correct. But if for some, to me, unfathomable reason, the belt should become loose, causing slippage, I can think of only 3 possible causes:

1. Someone, unknowingly removed and replaced the belt incorrectly, by MISROUTING the belt on the pulleys.

2. Someone, unknowingly replaced the belt with one of the wrong size.

3. One of the belt driven components [water pump, alternator, smog air pump, Power Steering pump, air conditioning compressor, etc.] has been replaced with a new unit which has a different sized pulley than the one replaced.

4. The tensioning SPRING in the auto tensioning arm has become weak, and if so the arm assembly must be replaced.

As 1 implies, there is no provision for adjustment, as the tensioner arm assembly is supposed to automatically maintain the proper tension. j3h.

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โˆ™ 2015-07-15 19:54:22
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Q: How do you adjust the tension on an automobile serpentine belt?
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