Question about 1994 Chevrolet Corsica

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Main belt on engine loose and it comes off - 1994 Chevrolet Corsica

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You need a belt tensioner. Depending on which engine you have (and where you live), it's between $50-60, and easy to do yourself.
It's bolted directly to the engine, with a pulley on its arm, and it's held tight by a spring inside. It only comes as a complete assembly (you can't just replace the spring), but it's easy to do. Since your belt's loose, that's step one.
2. Remove any plastic guards that would be around the belt. On the 3.1L V6, there's one between the power steering and water pump, facing you. This has the belt routing diagram (I know, it's a cartoon, but it's accurate), and it'll help your memory.
3. Remove the belt. Pay close attention to where the belt passes, and where the grooves have to line up, you'll put it back once it's done.
4. You have to remove the tensioner now. It's the smooth pulley that doesn't look like it does anything. If it wasn't spring-loaded, it'd be called an idler pulley. They serve the same purpose, to turn the belt another direction. It's usually held to the engine with 2 bolts. Don't turn the one actually inside the pulley wheel, but rather the two that are just bolted to the body. Compare this to your new tensioner. The new one should hold its pulley at a different angle.
5. Bolt in your new tensioner. Thread in your new belt. You should be done.

Posted on Mar 11, 2011

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Sounds like the belt tensioner is either stuck in place and not adjusting, or the spring in it is weak. Either way sounds like you need a new belt tensioner.

Posted on Mar 11, 2011

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