Tools You'll Likely Need:
* Socket wrench set (metric)
* Ratchet and extensions
* Wrenches (metric)
* Pliers
* Screwdrivers (Phillips and possibly flathead)
* Jack and jack stands (crucial for safe working conditions)
* Wheel chocks
* Battery terminal cleaner
* New alternator (ensure you get the correct one for your Firebird's engine)
* Possibly a pulley puller (depending on the alternator's design)
* Gloves and safety glasses
Procedure:
1. Safety First: Park the Firebird on a level surface, engage the parking brake, and chock the wheels. Disconnect the negative battery cable.
2. Access the Alternator: The alternator's location varies slightly depending on the engine (V6 or V8). Generally, it's located on the front of the engine, near the top. You may need to remove some components to access it properly. This might include:
* Serpentine Belt: You'll almost certainly need to remove the serpentine belt. Consult your repair manual or online resources for the correct procedure for your engine. Often, a belt tensioner needs to be loosened or released to remove the belt.
* Other Components: Depending on your specific engine and alternator placement, you may need to remove or loosen other components like brackets, hoses, or wiring harnesses.
3. Disconnect Electrical Connections: Locate the alternator's wiring harness connectors. Carefully disconnect them, taking note of their positions for reassembly. Some connectors might have locking mechanisms.
4. Remove the Alternator Mounting Bolts: Use the appropriate sockets and wrenches to remove the bolts holding the alternator to the engine block or mounting bracket. The number and location of these bolts will vary.
5. Remove the Alternator: Once the bolts are removed, carefully remove the alternator from its mounting position. It might be heavy.
6. Install the New Alternator: Position the new alternator in place, aligning it with its mounting holes. Install the mounting bolts and tighten them securely to the specified torque.
7. Reconnect Electrical Connections: Carefully reconnect the electrical connectors to the new alternator, ensuring a secure connection.
8. Reinstall the Serpentine Belt: Carefully reinstall the serpentine belt, making sure it's routed correctly around all the pulleys. Consult your repair manual for the correct routing diagram.
9. Reconnect the Battery Cable: Reconnect the negative battery cable.
10. Test the Alternator: Start the engine and check the voltage at the battery terminals with a voltmeter. The voltage should be around 13.5-14.5 volts when the engine is running. If the voltage is low, there's a problem (the new alternator may be defective, or there could be another issue).
Important Notes:
* Repair Manual: A specific repair manual for your 1997 Pontiac Firebird is highly recommended. It will provide detailed diagrams, torque specifications, and step-by-step instructions tailored to your vehicle.
* Pictures: Before disconnecting anything, take pictures of the connections and component locations. This will be invaluable during reassembly.
* Professional Help: If you're not comfortable performing this repair yourself, it's best to take your Firebird to a qualified mechanic. Incorrectly installing the alternator could damage other components or even lead to electrical hazards.
This guide provides a general overview. Always prioritize safety and consult your vehicle's repair manual for accurate and specific instructions for your 1997 Pontiac Firebird.
