Tools You'll Need:
* New serpentine belt: Make sure you get the correct size and type. Your owner's manual or a parts store can help with this.
* Wrench(es): You'll likely need various sizes, possibly including a ratchet and socket set. The specific sizes depend on the tensioner and pulley bolt sizes.
* Socket wrench or adjustable wrench (for the tensioner): This is crucial for releasing tension on the belt.
* Pliers (optional): Might be useful for gripping the belt during removal and installation.
* Gloves: To protect your hands.
* Jack and jack stands (recommended): Lifting the front of the car will provide better access and safety. Never work under a car supported only by a jack.
Steps:
1. Safety First: Park on a level surface, engage the parking brake, and chock the wheels. If you jack up the car, use jack stands for safety.
2. Locate the Serpentine Belt: It's the long belt that runs around several pulleys (alternator, power steering pump, water pump, etc.).
3. Identify the Belt Tensioner: This is a pulley with a mechanism to adjust tension. It often has a bolt or a lever.
4. Release Belt Tension: This is the trickiest part. The method varies slightly depending on your Cavalier's engine. You'll typically use a wrench on the tensioner bolt or lever to relieve the tension on the belt. Consult your repair manual to determine the exact location and method. You might need to rotate the tensioner to a specific position to release enough tension to slip the belt off. *Some tensioners require a special tool.*
5. Remove the Old Belt: Once the tension is released, carefully guide the belt off the pulleys. Work your way around the pulleys, one at a time.
6. Install the New Belt: Route the new belt onto the pulleys in the same order as the old belt. Make sure it sits correctly in the grooves of all the pulleys.
7. Release Tensioner and Check Alignment: Release the tensioner carefully and allow it to return to its normal position. Ensure the belt is correctly seated on all the pulleys. Check for proper alignment and no rubbing.
8. Start the Engine: Briefly start the engine to ensure the belt is working correctly and that there are no squealing noises. Check for belt slippage.
9. Double-Check: Turn off the engine and visually check the belt again to make sure it's properly aligned and not loose or rubbing.
Important Considerations:
* Repair Manual: The most important resource. It will show you the exact location of the tensioner, the correct wrench sizes, and the proper belt routing.
* Tensioner Type: Some tensioners use a spring and lever, others use a hydraulic system.
* Belt Routing: Pay close attention to the belt path. Misrouting can damage the belt and related components.
* Torque Specifications: Use a torque wrench to tighten the tensioner bolt to the manufacturer's specified torque.
If you are uncomfortable performing this repair yourself, take your car to a qualified mechanic. Replacing a serpentine belt incorrectly can lead to serious engine damage.
