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There is no fan belt. Cavaliers, sunbirds, and sunfires use electric fans. But there is a serpentine belt...just go to your mechanic and they can put a new one on!

Seriously, changing the serpentine belt is a messy annoying chore but easily accomplished.

The belt is held in place by a few of the pulleys and the tensioner. Before removing the belt, check to see that the tensioner pulley (kinda in the middle on top... smooth and likely shiny) is running straight and the belt has not been rubbing against the timing cover. If the tensioner isn't straight (in-line with the belt and the rest fo the pulleys) or there are rub marks on the timing cover from the belt, you will need to replace the tensioner assembly too. Time to decide if the mechanic is a better idea or not!

The tensioner is 50 to 90 bucks depending on the source and your haste. The job should take an hour to an hour and a half for a decent shop (figure another 100 to 200 bucks) plus a new belt... So the job should run between 300 and 400 dollars U.S.

On the other hand, pretty much all the accessories have to be removed or loosened to remove the tensioner assembly (not repairable) and replace it. Plus, for an added bonus, it's kinda tight against the right fender. Messy by any standard.

If your tensioner is OK or at least "reasonable," you just take tension off the belt with a suitable wrench or socket handle, slip the belt off the tensioner and slooowly release the tensioner. Check for a belt route diagram on a sticker on the radiator support (or under the hood). If yours is missing or undecipherable, make some notes or take pictures of the belt routing! Then the belt can be manuvered off and a replacement put on "reassembly being the reverse of disassembly."

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βˆ™ 2011-09-12 20:43:34
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Q: How do you replace a fan belt on a 1991 Chevrolet Cavalier?
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