Heater Core Case: Service and Repair

REMOVAL
1. Remove the rear seat airflow duct. For additional information, refer to Air Duct.
2. Remove the instrument panel. For additional information, refer to: Dashboard/Instrument Panel. Service and Repair
3. Drain the coolant from the radiator so the coolant level is below the heater core. For additional information, refer to Cooling System.







4. Disconnect the heater water hoses.







5. Inside the vehicle, remove the nut.







6. Disconnect the vacuum hoses.

NOTE: Mark the locations of the vacuum hoses.







7. Disconnect the vacuum hose.







8. Remove the pin-type retainers and remove the vacuum harness.







9. Disconnect the connector.







1O. Remove the nuts.







11. Disconnect the connectors.







12. Remove the in-car temperature sensor hose (if equipped).







13. Remove the plenum chamber.

INSTALLATION
1. Position the plenum chamber on the dash panel







2. Install the nuts.







3. Install the nut.







4. Install the in-car temperature sensor hose (if equipped).







5. Install the connector.







6. Install the vacuum harness.







7. Connect the vacuum hose.







8. Connect the vacuum hoses.







9. Install the heater water hoses.
- Lubricate the coolant hoses with Ford Rubber Suspension Insulator Lube E25Y-19553-A or equivalent meeting Ford specification ESF-M99B112-A.
10. Refill the cooling system. For additional information, refer to Cooling System.
11. Install the heater outlet floor duct. For additional information, refer to Heater Outlet Floor-Duct.
12. Install the instrument panel. For additional information, refer to: Dashboard/Instrument Panel. Service and Repair