To replace the serpentine belt on a 2002 Chevy Express, first, locate the belt routing diagram, usually found on a sticker under the hood. Use a wrench or ratchet to relieve tension on the tensioner pulley and remove the old belt. Then, carefully route the new belt according to the diagram, ensuring it sits properly on all pulleys. Finally, recheck the belt alignment, and start the engine to ensure it's functioning correctly.
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To replace the alternator on a 2002 Chevy Express van with a 4.3-liter engine, first disconnect the negative battery cable. Remove the serpentine belt by loosening the tensioner, then unbolt the alternator from its mounting bracket. Carefully disconnect the electrical connectors and remove the alternator from the engine bay. Install the new alternator by reversing these steps, ensuring all connections are secure and the belt is properly tensioned before reconnecting the battery.
If you suspect it is clogged just replace it, then you will know if that was your problem.
Put a wrench on the tensioner. Push it slack. Replace the belt while holding the tensioner in the slack position.
no!
Right on the very front of the motor.
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You can try this video guide on repairing the serpentine belt.
Saab dealer quoted 1 hour to replace the serpentine belt. The cost of the belt was $60 canadian.
Get the new belt and start by removing the alternator