Rick's Free Auto Repair Advice

Posts Tagged: belt tensioner tool

Diagnose a belt tensioner

Diagnose a belt tensioner A worn automatic serpentine belt tensioner can cause belt squeal, misalignment, belt chirp, and alternator bearing damage. Automatic tensioners tend to wear out at around 100K miles. If you have a belt noise or vibration and you’ve changed the belt, it’s time to test your belt tensioner. It’s easy. Just follow the procedures below. First, understand the belt tensioner’s TWO jobs Belt tensioner job #1: Maintain proper belt tension The belt tensioner’s first job is to maintain the proper tension on the serpentine belt. That’s easy … Read More


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