Tools You'll Need:
* New serpentine belt: Get the correct size and type from a parts store, providing your vehicle's year, make, and model.
* Wrench(es): You'll likely need various sizes, including possibly a socket wrench set and possibly a ratchet. Specific sizes will depend on your Fiero's tensioner mechanism.
* Pliers: Possibly needed to assist with belt routing.
* Jack and jack stands (highly recommended): This will give you better access and safety.
* Gloves: To protect your hands.
* Shop rags or paper towels: For cleaning up.
* A repair manual (highly recommended): This will provide specific torque values and guidance.
Procedure (General Steps - Consult Your Repair Manual):
1. Safety First: Disconnect the negative battery terminal to prevent accidental shorts. Place the vehicle on jack stands after safely raising it with a jack.
2. Locate the Tensioner: The serpentine belt tensioner is a mechanism that allows you to release tension on the belt so you can remove and install it. Identify its location on your engine. It will likely have a pulley and a mechanism to release tension (often a bolt or lever).
3. Release Belt Tension: This is the crucial step. Using the appropriate wrench, carefully release the tensioner. This step varies greatly between vehicles and is where a repair manual is essential. Some tensioners use a bolt that you loosen, others use a lever that you turn, etc. The repair manual will show you exactly how to do it for your 1986 Fiero.
4. Remove the Old Belt: Once the tension is released, carefully lift the belt off of the pulleys. Take note of the routing of the belt; you'll need to put the new one on in the same way.
5. Install the New Belt: Carefully position the new belt onto the pulleys, following the same route as the old belt. Make sure all pulleys are engaged.
6. Re-tension the Belt: Once the new belt is on all pulleys, re-tighten the tensioner mechanism. Again, consult your repair manual to ensure proper tension. The belt should be snug but not overly tight. The repair manual may specify a method to check belt tension.
7. Check Belt Routing: Double-check that the belt is properly seated on all pulleys.
8. Reconnect the Battery: Reconnect the negative battery terminal.
9. Start the Engine: Start the engine and listen for any unusual noises (squeaking, squealing). If you hear any, stop the engine immediately and recheck your work.
10. Test Drive: Take a short test drive to ensure the belt is functioning correctly and not slipping.
Important Considerations:
* Belt Routing: Getting the belt routed correctly is critical. Incorrect routing can lead to premature belt failure and damage to engine components. Your repair manual will have a diagram showing the correct routing.
* Tension: Improper tension can cause belt slippage or premature wear. Follow the instructions in your repair manual carefully.
* Tensioner Pulley: Inspect the tensioner pulley for wear or damage while you're working.
* Other Components: While you have the belt off, consider inspecting other components such as the pulleys and idler bearings for signs of wear.
This is a general guide. Always use a repair manual specific to your 1986 Pontiac Fiero 2.8L V6 for accurate and safe instructions. If you are not comfortable performing this repair yourself, take your Fiero to a qualified mechanic. Improper belt replacement can lead to engine damage.
