Heater Core: Service and Repair

Removing and installing heat exchanger

Removal
1. Remove covers from heating and air-conditioning system, battery and fluid reservoir. Disconnect battery and cover terminal or battery.
2. Remove the entire wiper link with wiper motor.






3. Loosen right dome strut and bracket at the cowl frame and remove.
4. Clamp shut both heater hoses in front of the heat exchanger using a commercially available hose clamp. Loosen heater hoses at the heat exchanger and pull off.
5. Carefully remove cover over the heat exchanger.






6. Release heat exchanger and pull it up and out.

Installation
1. Seal cover over the heat exchanger airtight with butyl adhesive.
2. Replace cover if damaged.
3. The heat exchanger is connected to the engine cooling system, and coolant flows through it when the engine is running. After removing or installing the heat exchanger, vent the cooling system.