Tools You'll Likely Need:
* Wrench set (metric): Various sizes, including likely 10mm, 13mm, and possibly larger for the alternator mounting bolts.
* Socket set (metric): Same sizes as above, often easier to use than wrenches in tight spaces.
* Ratchet: To work with the sockets.
* Extension(s): To reach bolts in tight areas.
* Pliers: For disconnecting electrical connectors.
* Screwdrivers (Phillips and flathead): Potentially needed for various plastic covers.
* Jack and jack stands: Crucial for safety. Never work under a car supported only by a jack.
* Wheel chocks: To prevent the car from rolling.
* Battery terminal cleaner: To ensure good connections.
* New alternator: Make sure to get one that's compatible with your 1998 Mercury Tracer. The part number will be on the old one.
* Gloves and safety glasses: Always a good idea when working on your car.
* Possibly a torque wrench: To tighten bolts to the manufacturer's specifications.
Steps (General Outline - Consult Your Repair Manual for Specifics):
1. Safety First: Disconnect the negative (-) battery terminal. This prevents accidental shorts and protects you from electrical shocks.
2. Access the Alternator: The alternator's location varies slightly depending on the engine type (usually a 2.0L Zetec). You'll likely need to access it from underneath the vehicle. This may involve removing some underbody shielding or other components to gain better access. Consult your repair manual for the precise location and any components that need to be removed.
3. Disconnect Electrical Connections:
* There will be at least two wires connected to the alternator – one larger for the power output, and another smaller for the alternator's sensing/control circuit. Carefully disconnect these connectors. Take photos or make notes to remember how they're connected for reassembly.
4. Remove the Alternator Mounting Bolts: These bolts usually hold the alternator to the engine block or a bracket. Loosen them with the appropriate wrench or socket. They may be difficult to access, requiring extensions or specialized tools.
5. Remove the Alternator: Once the bolts are loose, carefully remove the alternator from its mounting position. It may be a bit tight, so be prepared to gently wiggle it free.
6. Install the New Alternator: Carefully align the new alternator and securely install it, using the same mounting points as the old one. Tighten the bolts to the manufacturer's specified torque (found in your repair manual).
7. Reconnect Electrical Connections: Carefully reconnect the electrical connectors to the new alternator, matching them to their original positions.
8. Reconnect the Battery: Reattach the negative (-) battery terminal.
9. Test: Start the car and check the charging system. The battery voltage should be around 13.5-14.5 volts when the engine is running. If it's not charging properly, double-check all connections and consult a mechanic.
Important Considerations:
* Repair Manual: This is absolutely crucial. A repair manual specific to your 1998 Mercury Tracer will provide detailed diagrams and instructions.
* Belt Tension: The alternator belt may need adjustment after installing the new alternator. Consult your repair manual for proper tension procedures.
* Difficult Access: Be prepared for tight spaces and potentially difficult access to bolts. You may need extensions, swivel sockets, or other specialized tools.
* Professional Help: If you're not comfortable working on your car or encounter unforeseen difficulties, it's always best to consult a qualified mechanic.
Remember, this is a general guide. Always consult your vehicle's repair manual for detailed, model-specific instructions. Safety should be your top priority. If you're unsure about any step, seek professional help.
