Navigator 4WD V8-5.4L (2010)
Housing Assembly HVAC: Service and Repair
Heater Core And Evaporator Core Housing
Heater Core And Evaporator Core Housing
Removal and Installation
NOTE: If an evaporator core leak is suspected, the evaporator must be vacuum leak tested before it is removed from the vehicle.
1. Recover the refrigerant.
2. Drain the engine coolant. For additional information, refer to Cooling System &/or Engine Block Heater.
3. Remove the instrument panel. For additional information, refer to Instrument Cluster / Carrier &/or Interior Moulding / Trim.
4. Disconnect the 2 heater hose quick disconnect fittings at the heater core.
5. Remove the Thermostatic Expansion Valve (TXV) fitting nut and disconnect the fitting.
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Discard the gasket seals.
