Buick Serpentine Belt Tensioner

Most newer cars and trucks have a single serpentine belt on their engine. This belt transfers power, through pulleys, from the engines crankshaft to other accessories or pumps mounted on the engine. On many cars and trucks the serpentine belt will drive the water pump, the radiator cooling fan, the power steering pump, the generator or alternator, the air conditioning compressor and possibly even a supercharger or other auxiliary component. The belt must have the correct amount of tension to effectively drive all the components but not so much tension that the belt is in danger of breaking. The belt tensioner is responsible for generating the correct amount of tension. If your belt tensioner fails you will lose the benefits of many of the options. On many vehicles the water pump will stop turning but the engine will continue to run. This could lead to catastrophic failure of the engine.

Symptoms of a bad serpentine belt tensioner:
1. Loose Belt
2. Squeaking belt
3. Whirring noise from the front of the engine.
If your vehicle is displaying any of these symptoms you may need a new belt tensioner. Replacing a fan belt tensioner is usually an easy project. The factor that can make it difficult is how your engine is mounted. On front drive cars where the engine is mounted transversely it can be difficult to access the belt tensioner.

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We employ USA-based, knowledgeable support technicians. They'll help you through your project. We always make sure you get the right part. And we boast the industry's most generous returns policy. You won't find a company more passionate about auto parts than 1A Auto.