Expedition 4WD V8-4.6L SOHC VIN W (1999)
Heater Core: Service and Repair
Heating and Defrosting
REMOVAL
NOTE: If a heater core leak is suspected, the heater core must be leak tested before it is removed from the vehicle.
1. Disconnect the battery ground cable.
2. Drain the radiator. Refer to: "Engine, Cooling and Exhaust : Cooling System : Service and Repair" See: Engine, Cooling and
Exhaust/Cooling System/Service and Repair
3. Remove the instrument panel. Refer to: "Body and Frame : Interior Trim : Dash Board : Service and Repair" See: Body and Frame/Interior
Moulding / Trim/Dashboard / Instrument Panel/Service and Repair
4. Disconnect the heater core hose couplings.
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.