Hose/Line HVAC: Service and Repair
CONDENSER TO EVAPORATOR LINEREMOVAL
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 R-134a refrigerant systems as an AC compressor lubricant. PAG Refrigerant Compressor Oil F7AZ-19589-DA (Motorcraft YN-12-C) or equivalent meeting Ford specification WSH-M1C231-B only should be used as an A/C compressor lubricant.
NOTE: 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.
All vehicles
1. Recover the refrigerant.
Vehicles with 6.0L diesel engine
2. Disconnect the condenser fitting.
- Discard the O-ring seal.
Vehicles with 4.6L, 5.4L or 6.8L engine
3. Remove the engine air cleaner and the air cleaner outlet tube.
4. CAUTION: Use a wrench on each side of the fitting to prevent damage to the A/C fitting.
Disconnect the condenser core refrigerant lines.
1 Disconnect the compressor discharge line.
2 Disconnect the condenser to evaporator tube.
- Discard the O-ring seals.
Vehicles with auxiliary A/C
5. Remove the four clamps.
1 Remove the screw.
2 Remove the clamp.
6. Disconnect the underbody tube spring lock coupling.
- Discard the O-ring seals.
All vehicles
7. CAUTION: Use a wrench on each side of the fitting to prevent damage to the A/C fitting.
Disconnect the A/C evaporator core fitting.
1 Remove the screw.
2 Disconnect the A/C evaporator core fitting.
- Discard the O-ring seal.
8. Remove the condenser-to-evaporator tubes.
INSTALLATION
1. To install, reverse the removal procedure.
- Install new O-ring seals lubricated in clean mineral oil.
- Lubricate the refrigerant system with the correct amount of clean PAG oil.
2. Evacuate, leak test and charge the A/C system.