The fan belt on a 1984 Oldsmobile Delta 88 turns the engine fan mounted on the water pump as well as any other engine accessories mounted on the front of the block. This belt can stretch, break, or tear, which means that none of the engine accessories will work. The first sign that the belt has stretched is a squealing sound from under the hood. If you hear that, or suspect that your fan belt is worn, you need to replace it as soon as possible.
Tools Used: 1/2-inch breaker bar, Replacement belt
Replace Fan Belt
Disconnect the negative battery cable and set it aside.
Find the belt tensioner on the front of the engine block, which is up toward the driver's side of the engine. Insert the 1/2-inch breaker bar into the square peg on the tensioner.
Turn the breaker bar clockwise and hold it steady. Pull the belt off the tensioner, then slowly release the breaker bar. Pull the belt off the remainder of the engine pulleys.
Run the replacement belt around as many pulleys as possible, making sure to run it in the same pattern as the original.
Turn the breaker bar again and hold it steady. Run the belt under the tensioner, then release the breaker bar carefully. Inspect the belt and make sure it doesn't twist along the way.
Reconnect the negative battery cable.
Tips & Warnings
If you can't remember the belt-routing pattern, check the owner's manual or the sticker under the hood to figure out which way to run the belt.
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