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Why you use idler pulley?

Updated: 8/18/2019
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13y ago

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To apply tension

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13y ago
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Q: Why you use idler pulley?
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Where is the idler pulley on a 1996 Chevy Cavalier?

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If you are referring to the Serpentine belt, you loosen no pulley. You simply remove tension from the belt. The tension is applied by the Idler Pulley. Pry the idler back and remove the belt.If you are referring to the Serpentine belt, you loosen no pulley. You simply remove tension from the belt. The tension is applied by the Idler Pulley. Pry the idler back and remove the belt.


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How do you change the serpentine belt on a Mercury Cougar with a 3.8 engine?

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