Tools You'll Likely Need:
* Socket set (metric): Various sizes, likely including 10mm, 13mm, and possibly others depending on your specific Fiero's configuration.
* Wrench set (metric): Similar sizes to the sockets.
* Ratchet: A good quality ratchet will make the job easier.
* Extension bars: To reach those hard-to-reach fasteners.
* Screwdrivers: Phillips and possibly flathead.
* Pliers: Needle-nose pliers might be helpful.
* Jack and jack stands: Essential for safety. Never work under a car supported only by a jack.
* Wheel chocks: To secure the vehicle.
* Battery terminal cleaner/wrench: To safely disconnect the battery.
* Wires or jumper cables: To help with the charging system in case the vehicle loses power.
* New alternator: Make sure you purchase the correct alternator for your 1988 Pontiac Fiero GT.
* Gloves and safety glasses: Always protect yourself.
Procedure:
1. Disconnect the Battery: Disconnect the negative (-) battery cable first, then the positive (+) cable. This is crucial to prevent electrical shocks and short circuits.
2. Safety First: Secure the vehicle using jack stands after properly jacking it up. Wheel chocks on the remaining wheels are also highly recommended.
3. Access the Alternator: The alternator is typically located on the passenger side of the engine bay, usually towards the front. The exact location and access might vary slightly depending on the engine configuration. You may need to remove some components to gain better access, such as the air intake or related components. Consult a repair manual for specific details.
4. Remove the Alternator Mounting Bolts: Locate the bolts holding the alternator in place. There are usually two or three. Use the appropriate sockets and wrenches to loosen and remove them.
5. Disconnect Electrical Connections: Disconnect the alternator's wiring harness. There will likely be at least two connections: one for the power wire and one for the exciter wire (smaller wire). Take pictures or make notes to remember how they are connected for reassembly.
6. Remove the Alternator: Once the bolts are removed and the wiring is disconnected, carefully remove the alternator from its mounting bracket. It may be a little tight, so gently wiggle it free.
7. Install the New Alternator: Carefully install the new alternator, ensuring it's properly seated in the mounting bracket. Reconnect the electrical connectors. Make sure everything is firmly secured and that the connections are clean.
8. Secure the Alternator: Reinstall the mounting bolts and tighten them to the manufacturer's specified torque (check your repair manual).
9. Reconnect the Battery: Reconnect the positive (+) battery cable first, then the negative (-) cable.
10. Check Functionality: Start the car and check the charging system using a voltmeter. The voltage should be around 13.5-14.5 volts when the engine is running. If not, there may be another problem in the charging system.
Important Considerations:
* Repair Manual: A factory service manual or a reputable aftermarket repair manual is invaluable. It will provide detailed instructions, diagrams, and torque specifications specific to your 1988 Pontiac Fiero GT.
* Belt Tensioner: You may need to loosen the belt tensioner to remove and reinstall the alternator belt. Be careful when doing this as the belt can be under significant tension.
* Cleanliness: Keep the area clean and organized to avoid losing small parts or damaging anything.
* Professional Help: If you're not comfortable performing this repair yourself, it's always best to consult a qualified mechanic.
This is a general overview; specifics may vary. Always consult a repair manual for your specific vehicle model before starting any repair work. Safety should be your top priority.
