The national cost for drive belt replacement is between $41 and $170 with an average of $109

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In Ashburn, people who book through CarAdvise save $31 on average for Serpentine Belt. Lock in this price now.

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National average cost of a Serpentine Belt
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What is a serpentine belt and how does it work?

Your engine needs to perform a number of roles. Not only does it provide power so your vehicle can move, but it also has to keep itself cool, keep passengers cool, assist with power steering, and generate electricity. In order to accomplish all this, a number of engine accessories - like the alternator, power steering pump, AC compressor, and sometimes the water pump - are actuated by a rubber belt called a serpentine belt. The serpentine belt is driven by the engine's crankshaft and, in turn, drives pulleys connected to these other components. It is sometimes referred to as a "drive belt" or "fan belt".

Signs that your serpentine belt needs to be replaced

When a serpentine belt begins to wear out, it stretches and cracks, and the ribs that ride along the pulleys begin to wear smooth. You might notice a squealing noise that gets louder when the engine speed increases or when you turn on the air conditioner. Visual inspection of the serpentine belt might also reveal signs of wear. If the belt breaks while you are driving, you will likely lose power steering function and your engine will stall.

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How is this service performed

How is a Serpentine Belt done?

To replace a serpentine belt, a technician will need to access the front of your vehicle's engine, which might include removing shields or other components. Next, the belt tensioner must be loosened and the worn belt is removed. The technician will install the new belt, carefully routing it in the proper direction around the pulleys. The tensioner is tightened or released, and the engine is started to check for proper operation. Once everything is put back into place, the vehicle is test driven to verify the repair.

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