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Video: Diagnosing Engine Belt Noise

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Diagnosing Engine Belt Noise

Length: 3:20 Added: Nov-12 Views: 62

Here's a noisy Chrysler 300 with a locked-center tensioned accessory drive. In order to determine if the noise is a chip or a squeal one method is to spray the rib side with water. If the noise gets louder its technically a squeal and therefore a tension issue rather than misalignment. First disconnect the battery for safety sake. Since this is a locked-center tension drive the adjustable idler pulley should be inspected first. Spin it to check for lock-up, binding or a gravely sound. If it free-wheels the grease is gone. Also check for free-rock. A little is ok but too much means the pulley should be replaced.

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Here's a noisy Chrysler 300 with a locked-center tensioned accessory drive. In order to determine if the noise is a chip or a squeal one method is to spray the rib side with water. If the noise gets louder its technically a squeal and therefore a tension issue rather than misalignment. First disconnect the battery for safety sake. Since this is a locked-center tension drive the adjustable idler pulley should be inspected first. Spin it to check for lock-up, binding or a gravely sound. If it free-wheels the grease is gone. Also check for free-rock. A little is ok but too much means the pulley should be replaced.