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If you are attempting to replace the alternator how do release belt tensioner on a 1988 Oldsmobile 98?

To release the belt tensioner on a 1988 Oldsmobile 98, follow these steps:

1. Locate the belt tensioner. It is located on the front of the engine, near the alternator.

2. There is a 15 mm bolt that holds the belt tensioner in place. Loosen this bolt.

3. Pry the belt tensioner away from the alternator using a pry bar or other suitable tool.

4. The tensioner will release, and you will be able to remove the serpentine belt.

To reinstall the serpentine belt, simply reverse the steps above. Be sure to tighten the 15 mm bolt securely before starting the engine.