Safety first
- Make sure the engine is turned off and the car is in park (for automatics) or in gear (for manuals) with the parking brake engaged before proceeding.
- Disconnect the battery's negative terminal to avoid any electrical accidents.
Step-by-Step Instructions
1. Remove the serpentine belt
- Locate the serpentine belt tensioner pulley towards the front of the engine bay.
- Use a wrench or appropriate-sized socket and breaker bar or ratchet to loosen the tensioner and release the serpentine belt.
2. Remove the alternator bracket
- There will be a bracket supporting the alternator; remove the bolts/nuts that hold it in place.
3. Disconnect electrical connections
- Disconnect the electrical connector from the alternator by unplugging it or prying it off gently if necessary.
4. Remove the mounting bolts/nuts
- Locate and loosen the bolts or nuts that hold the alternator onto its mounting bracket.
- There may be one or more on the front and the rear of the alternator.
5. Remove the old alternator
- Once loosened, carefully maneuver the alternator out by pulling it towards you.
- Take care when removing the alternator to not drop it on any other components.
6. Install the new alternator
- Place the new alternator into its position, making sure it aligns correctly with the mounting brackets.
- Fasten the mounting bolts/nuts, tightening them securely.
- Re-install the serpentine belt and adjust it to the proper tension using the tensioner pulley.
7. Reconnect the electrical connector
- Plug the alternator's electrical connector back in.
8. Reinstall the alternator bracket
- Reinstall the bracket to support the alternator and secure the bolts/nuts that hold it in place.
9. Reconnect the battery
- Reconnect the negative terminal of the battery to restore power to the vehicle's electrical systems.
10. Test the alternator
- Start the car and allow it to run for a few minutes. Check that the battery light on the dashboard turns off, indicating that the alternator is charging properly.
11. Clean up
- Clean up the work area and tools, and dispose of the old alternator responsibly.
Remember, if you're not comfortable performing this task yourself, it's always a good idea to consult with a qualified mechanic.
