1. Gather Tools:
- New Heater Resistor.
- Socket wrench set.
- Flathead screwdriver.
- Needlenose pliers.
2. Locate Heater Resistor:
- Turn off your engine and let it cool down completely.
- Open the hood of the vehicle.
- Locate the heater resistor housing. Depending on your Jeep Wrangler model, it's usually mounted near the firewall on the passenger side.
3. Disconnect Battery:
- Disconnect the negative battery terminal to prevent electrical shocks during repair.
4. Remove the Cowl:
- Use a flathead screwdriver to release the clips holding the windshield cowl in place. The cowl is located at the base of the windshield.
- Gently pry the cowl to lift it off the vehicle.
5. Locate Heater Resistor Terminals:
- Identify the electrical terminals on the heater resistor housing. They should be marked with different colors or labeled.
6. Disconnect Terminals:
- Using a socket wrench, loosen the nuts holding the electrical wires to the terminals on the heater resistor.
- Be careful not to drop the nuts or washers into the engine compartment.
- Disconnect the wires from the terminals.
7. Remove Heater Resistor:
- Once the terminals are disconnected, use a flathead screwdriver or needlenose pliers to gently pry the old heater resistor out of the housing.
8. Install New Heater Resistor:
- Position the new heater resistor into the housing.
- Secure the new resistor using the screws or clips you removed earlier.
9. Reconnect Terminals:
- Reconnect the electrical wires to their respective terminals on the new heater resistor.
- Tighten the nuts using a socket wrench.
- Ensure there is a proper connection.
10. Reinstall Cowl:
- Replace the cowl and secure it using the released clips from earlier.
- Make sure the cowl is securely fixed.
11. Reconnect Battery:
- Reconnect the negative battery terminal.
12. Test the Heater:
- Start the vehicle and turn on the heater at different settings.
- Verify that the airflow comes out warm or hot from the vents.
After following these steps, the heater resistor on your Jeep Wrangler should be successfully replaced. If you encounter any difficulties, consult a professional auto repair specialist.
