Tools You'll Need:
* New serpentine belt: Make sure you get the correct size and type for your Grand Prix's engine. Auto parts stores can help you identify the correct one using your VIN.
* Socket wrench set: You'll likely need various sizes, including metric.
* Ratchet: A good quality ratchet will make the job easier.
* Wrench(es): Possibly for tightening tensioner bolts (some tensioners are automatic).
* Jack and jack stands: To safely lift the car.
* Wheel chocks: Essential for safety.
* Gloves: To protect your hands.
* Pliers or channel locks: May be needed to help loosen or tighten components.
* Socket extensions: May be necessary to reach certain areas.
* Wrench for tensioner pulley (if manual): This is crucial for a manual tensioner system.
* Shop rags or paper towels: To clean any debris.
* A Diagram or Picture: Helps visualize what you are doing.
Steps (General Guide - Consult your Owner's Manual for Specific Details):
1. Safety First: Park your car on a level surface, engage the parking brake, and use wheel chocks. Raise the front of the car using a jack and secure it on jack stands.
2. Locate the Serpentine Belt: The belt runs around various pulleys including the crankshaft, alternator, power steering pump, and water pump. Identify all these components.
3. Identify the Tensioner: The tensioner is a pulley that allows you to release the tension on the belt to remove it. There are two main types:
* Automatic Tensioner: These typically have a spring-loaded mechanism. You might need to use a special tool or carefully pry on the tensioner to release the belt. Consult a repair manual or online video specific to your year and engine.
* Manual Tensioner: This will have a bolt that needs to be loosened to allow you to release the belt's tension using a wrench. This is often the easier method.
4. Release Belt Tension: Using the appropriate tool (wrench or pry bar, depending on your tensioner type), release the tension on the serpentine belt. This should allow you to slip the belt off the pulleys. Be careful; springs under tension can be dangerous.
5. Remove the Old Belt: Carefully work the belt off each pulley, starting with the loosest pulley.
6. Install the New Belt: Reverse the removal process. Carefully align the new belt onto each pulley, ensuring it sits correctly in its grooves.
7. Re-tension the Belt: Once all the pulleys are engaged, use the tensioner to tighten the belt to the manufacturer's specification (look this up in your repair manual). The belt should have the correct amount of deflection when pressed. Do not over tighten.
8. Lower the Vehicle: Carefully lower the vehicle from the jack stands.
9. Test and Inspect: Start the engine and check for any squealing or unusual noises. Visually inspect the belt to make sure it's running correctly and isn't rubbing against anything.
Important Considerations:
* This process can be challenging for someone without mechanical experience. If you're uncomfortable performing this repair yourself, it's best to take your car to a qualified mechanic.
* Incorrect tension can lead to premature belt wear or failure. Consult a repair manual for the correct tension specifications.
* Some components, like the tensioner pulley, may require special tools.
* Always disconnect the negative battery terminal before starting any repair work to prevent electrical shock.
This guide is for informational purposes only. Always refer to your vehicle's owner's manual and consult a qualified mechanic if you're unsure about any aspect of this repair. Improper repair can cause serious damage to your vehicle.
