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The alternator is sitting on a guide. It is held on it by a bolt. All you have to do is loosen that bolt and the belt pressure sould realese.

Look around for a wheel that is touching the belt but appears to have no other purpose...this is the tensioner. Use a long handled wrench on the nut in the middle of the tensioner.

there should be a diagram under the hood, in front of the radiator, that will show belt routing and show where the tensioner is...

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โˆ™ 2015-07-15 19:39:54
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Q: If you are attempting to replace the alternator how do you release the belt tensioner on a 1988 Oldsmobile 98?
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