1. Gather your tools.
- 1/2-inch drive ratchet
- 3/8-inch drive ratchet
- 1/2-inch socket set
- 3/8-inch socket set
- Phillips head screwdriver
- Pry bar
2. Prepare the vehicle.
- Turn off the engine and allow it to cool down.
- Engage the parking brake.
- Disconnect the negative terminal of battery.
3. Remove the serpentine belt.
- Locate the serpentine belt tensioner near the alternator.
- Use a pry bar to move the tensioner away from the belt and release it.
- Slip the belt off the alternator pulley.
4. Remove the mounting bolts.
- Remove the two bolts that hold the alternator in place.
- These bolts are usually located at the top and bottom of the alternator.
*If you have the A/C compressor, you may need to unbolt it as well.
5. Remove the alternator.
- Gently pry the alternator out of place and remove it from the engine.
- Be careful not to damage the electrical connections.
6. Remove the pulley.
- Use a 1/2-inch socket to loosen the bolt holding the pulley in place.
- Once the bolt is loose, use a pry bar to pry the pulley off of the shaft.
7. Install the new pulley.
- Place the new pulley onto the shaft.
- Tighten the bolt that holds the pulley in place.
- Make sure it's tightened securely.
8. Reinstall the alternator.
- Gently slide the alternator back into place and secure it with the mounting bolts.
- Tighten the bolts until they are snug.
9. Reinstall the serpentine belt.
- Slip the serpentine belt back onto the pulleys and ensure that it is seated correctly.
- Release the tensioner and the belt will automatically tighten.
- Reconnect the negative terminal of your battery.
Start your vehicle and check that the alternator is working properly. If you hear any strange noises or see any warning lights, stop driving and consult with a mechanic.
