The serpentine belt needs to be replaced either: by the # of miles on your vehicle, if you see any visible signs of cracks and/or by measuring the thickness of the belt.
You can check for cracks and the owner’s manual for mileage recommendation on your own. The thickness of the belt will need to be checked by a mechanic that has a special tool for this. The tool measures the depth of the grooves in the belt to see if it needs replacing.
The serpentine belt is that long belt that snakes around the front of your engine. It powers your alternator, air conditioning compressor, and power steering pump. It also runs the water pump,radiator fan, and power brakes, on some vehicles. That is one very important belt!
If your serpentine belt were to break, your battery would die in a few miles. Not a pleasant experience… grrrr!
A worn belt can slip and damage engine parts if the tensioner is not working properly. The tensioner keeps the correct tension on the serpentine belt. Your mechanic will also check to make sure that this part is tightening the belt correctly.
A worn belt can not only break without warning, it can slip and damage important engine accessories. Have your belt inspected and replaced if it is worn or damaged. You’ll be glad you did!
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