Heater Core: Service and Repair

Fig 38 Insulation Seal:

The heater housing must be removed from the vehicle to service the heater core.

REMOVAL
1. Disconnect battery
2. Remove heater housing from the vehicle. Refer to:"Heater Assembly HVAC : Service and Repair" Service and Repair

3. Remove the insulation seal from atop heater core.

Fig 39 Bracket Screws:

4. Remove heater core retaining screws.
5. Note the position of the heater core. The heater hose tubes are offset and can only be installed in the proper direction.

Fig 40 Heater Core Removal:

6. Lift heater core straight up and out of heater housing.

Fig 41 Heater Core Coolant Fill:

INSTALLATION
For installation, reverse the above procedures.
- Before connecting heater hoses, fill new heater core with coolant.
- This will minimize the amount of air trapped within the cooling system.