Removal and Replacement

Heater Core And Evaporator Core Housing













Removal and Installation

NOTICE: Motorcraft(R) Electric Compressor Oil only must be used as a refrigerant system lubricant for hybrid vehicles. Addition of any oil other than Motorcraft(R) Electric Compressor Oil to the hybrid vehicle refrigerant system will damage the electric Air Conditioning (A/C) compressor and contaminate the refrigerant system.

NOTE: If a heater core leak is suspected, the heater core must be leak tested before the heater core is removed. Component Tests and General Diagnostics

1. Drain the engine coolant. For additional information, refer to Cooling System &/or Engine Block Heater. Service and Repair

2. Recover the refrigerant. Service and Repair

3. Remove the instrument panel. For additional information, refer to Instrument Cluster / Carrier &/or Interior Moulding / Trim. Service and Repair

4. Remove the Thermostatic Expansion Valve (TXV) fitting nut and disconnect the fitting.
- Discard the gasket seals.

- To install, tighten to 15 Nm (133 lb-in).

5. Release the clamps and disconnect the heater inlet and outlet hoses from the heater core.

6. Remove the 6 heater core and evaporator core housing nuts.
- To install, tighten to 9 Nm (80 lb-in).

7. Remove the heater core and evaporator core housing in the following sequence.

1. Detach the heater core and evaporator core housing from the dash panel studs.

2. Rotate the RH side of the heater core and evaporator core housing toward the rear of the vehicle while pulling the housing toward the RH door opening to detach it from the rear footwell duct.

3. Remove the heater core and evaporator core housing.

8. Disassemble the heater core and evaporator core housing as needed. Service and Repair

9. NOTICE: Motorcraft(R) Electric Compressor Oil only must be used as a refrigerant system lubricant for hybrid vehicles. Addition of any oil other than Motorcraft(R) Electric Compressor Oil to the hybrid vehicle refrigerant system will damage the electric Air Conditioning (A/C) compressor and contaminate the refrigerant system.

To install, reverse the removal procedure.
- Install new gasket seals.

- Add the correct amount of clean PAG oil (non-hybrid) or electric A/C compressor oil (hybrid) to the refrigerant system. Specifications

10. Fill and bleed the engine cooling system. For additional information, refer to Cooling System &/or Engine Block Heater. Service and Repair

11. Evacuate, leak test and charge the refrigerant system. Service and Repair