Having problems with your 2003 Chevrolet Cavalier ?

Serpentine belt diagram for 2003 chevy cavalier 2.2l ohc

\015 The haynes manual and the gm manual never tell you WHICH pully wheel is the 'tensioner'. I'm looking around and see one with a bolt, but when I try to undo it, it doesn't tension, but acts like a regular bolt being unscrewed. A diagram which labels which of the pully wheels is the tensioner would be a big help. Thanks\015 Posted / edited by AnonymousUser on : 20-11-2017

Answers :

That pulley is the tensioner pulley. It is either manual or automatic. If it is a manual tensioner, the bracket that it is attached to it should have a square hole located on it bracket somewhere. This whole will look inoculous, but will be offset from the pulley. If you have a 3/4" socket wrench, you'll notice it fits nicely into this hole.

You use this hole (and the wrench) to twist the whole bracket and apply tension while you tighten the bracket itself down.

An automatic tensioner will have a spring inside and would pretty much work by itself when a belt of the proper length is installed. Your Hanynes manual would have already alerted you to how to adjust an automatic tensioner.

I hope that helps.

BTW, the tensioner pully usually rests on the back (flat) side of the belt and has no device attached to it.
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