Monterey V6-4.2L VIN 2 (2004)
Heater Core Case: Service and Repair
HEATER CORE AND EVAPORATOR CORE HOUSING, ASSEMBLY AND COMPONENTS
REMOVAL
CAUTION: Refrigerant compressor oil (mineral oil) F73Z-19577-AA (Motorcraft YN-9-A) should be used to lubricate R-134a refrigerant
system O-ring seals only and should not be added to the R-134a refrigerant system as an A/C compressor lubricant. PAG refrigerant
compressor oil F7AZ-19D589-DA (Motorcraft YN-12-C) or equivalent meeting Ford specification WSH-M1C231-B only should be used as an
A/C compressor lubricant.
NOTE:
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If removing the heater core only, refer to Heater Core - Front.
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New O-ring seals, lubricated in clean mineral oil, must be installed before reconnecting any A/C fitting that has been disconnected.
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Installation of a new suction accumulator is not required when repairing the air conditioning system, except when there is physical evidence of
system contamination from a failed A/C compressor or damage to the suction accumulator.
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If an evaporator core leak is suspected, the evaporator core must be vacuum leak tested before it is removed from the vehicle.
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If a heater core leak is suspected, the heater core must be leak tested before it is removed from the vehicle.
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Lubricate the coolant hoses with plain water only if needed.
1. Recover the refrigerant.
2. Remove the wiper motor and pivot assembly.
3. Remove the instrument panel. Refer to: Body and Frame, Interior Trim, Dashboard/Instrument Panel, Service and Repair, See: Body and
Frame/Interior Moulding / Trim/Dashboard / Instrument Panel/Service and Repair