1. Disconnect the Battery: Ensure the vehicle is off, and disconnect the battery to avoid any electrical hazards during the process.
2. Locate the Buzzer: The air alarm buzzer on the 379 Peterbilt is usually mounted on the firewall near the driver's seat. It's a small, round device with wires attached to it.
3. Remove the Buzzer: Once you've located the buzzer, use a wrench or socket to loosen and remove the mounting bolts that secure it to the firewall. Disconnect the electrical connector attached to the buzzer.
4. Install the New Buzzer: Take the new buzzer and connect the electrical connector. Position it properly on the firewall and align it with the mounting bolt holes. Secure the buzzer using the same bolts you removed earlier.
5. Test the Buzzer: Once the new buzzer is installed, reconnect the battery and turn on the ignition. Press the air horn button or turn on the hazard lights to test if the buzzer sounds as it should.
6. Reinstall the Dashboard: If you removed any dashboard panels or trim to access the buzzer, reinstall them securely.
Remember, if you encounter any difficulties or are not comfortable with electrical work, it's best to consult a professional mechanic for assistance in replacing the air alarm buzzer on your 379 Peterbilt.
