Tools You'll Need:
* Socket wrench set: You'll likely need a few different sized sockets, possibly including a 13mm and 15mm, depending on your specific Cavalier model. This is to potentially loosen the tensioner pulley.
* Wrench set: A combination of metric wrenches is also useful for accessing various fasteners or for assisting with the tensioner.
* Ratchet: To make using the sockets easier.
* Socket extensions: To reach those hard-to-reach bolts.
* Pliers: Possibly for gripping the belt during removal and installation.
* Jack and jack stands (highly recommended): This provides better access and working space, and is crucial for safety. Never work under a car supported only by a jack.
* Wheel chocks: To secure the car's wheels.
* Gloves: To protect your hands.
* New serpentine belt: Make sure to get the correct belt for your specific 1999 Chevy Cavalier engine. Check your owner's manual or an auto parts store for the correct size.
* Shop rag or towel: To keep your work area clean and to wipe off any grease or oil.
Procedure:
1. Safety First: Engage the parking brake firmly, chock the wheels, and jack up the front of the car securely using jack stands. Never work under a car supported only by a jack.
2. Locate the Serpentine Belt: It's the long belt that runs around various pulleys (alternator, power steering pump, water pump, etc.).
3. Identify the Belt Tensioner: This is a pulley with a mechanism to release tension on the belt. It usually has a bolt or lever that needs to be loosened or moved to relieve tension. This is *the most crucial step*. You may need to consult a repair manual or online videos specific to the 1999 Cavalier engine to see exactly how your tensioner works. Some have a bolt to loosen, others use a lever.
4. Release Belt Tension: Using the appropriate socket and ratchet (or wrench, depending on your tensioner design), carefully loosen the tensioner. This will allow you to slip the serpentine belt off the pulleys.
5. Remove the Old Belt: Once the tension is released, carefully work the belt off each pulley, starting from the loosest pulley.
6. Install the New Belt: Route the new belt onto the pulleys in the same path as the old belt. This is best done by starting with the tightest pulley and working your way around. It helps to have a visual reference of the old belt's routing.
7. Re-engage the Tensioner: Once the new belt is routed correctly, carefully tighten the tensioner bolt or lever back to its original position. Make sure the belt is snug but not overly tight.
8. Check Belt Alignment and Tension: Make a visual inspection to confirm the belt is properly aligned with all pulleys and has the correct tension. You should be able to push on the belt with moderate force; it should flex slightly but not be too loose or too tight.
9. Lower the Car: Carefully lower the car using the jack.
10. Start the Engine: Start the engine and listen for any squealing or unusual noises. If you hear any issues, turn the engine off immediately and re-check your work.
Important Notes:
* Consult a Repair Manual: A repair manual specific to your 1999 Chevy Cavalier is highly recommended. It will provide diagrams, torque specifications, and detailed instructions for your specific model.
* Online Videos: YouTube videos showing serpentine belt replacement on a 1999 Chevy Cavalier can be extremely helpful. Search for "1999 Chevy Cavalier serpentine belt replacement."
* Torque Specifications: If you have a repair manual, carefully follow the torque specifications for all bolts to avoid damaging components.
* Engine Coolant: Be aware that the water pump is part of the serpentine belt system. If the belt breaks, the water pump may not circulate coolant and could overheat the engine.
If you are uncomfortable performing this repair yourself, take your car to a qualified mechanic. It's better to be safe than sorry.
