Heater Core: Service and Repair

REMOVAL

NOTE: If a heater core leak is suspected, the heater core must be leak-tested before it is removed from the vehicle. Testing and Inspection

1. Disconnect the battery. For additional information, refer to Battery.
2. Drain the cooling system. For additional information, refer to Cooling System.
3. Remove the instrument panel. Refer to: Body and Frame, Interior Trim, Dashboard/Instrument Panel, Service and Repair, Removal and Installation, Removal and Installation







4. Compress the holding tabs and disconnect the heater water hoses at the heater core.







5. Remove the A/C plenum demister adapter.
1 Remove the screw.
2 Remove the A/C plenum demister adapter.







6. Disconnect the vacuum line.







7. Remove the heater core bracket.
1 Remove the screws.
2 Remove the bracket.







8. Remove the plenum chamber top.
1 Remove the 13 screws.
2 Remove the plenum chamber top.

9. Remove the blend door assembly from the case.







10. Remove the heater core.

INSTALLATION
1. To install reverse the removal procedure.