F 150 Heritage 4WD Pickup V8-5.4L SOHC VIN Z Bi-fuel (2004)
Accumulator HVAC: Service and Repair
SUCTION ACCUMULATOR
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-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.
1. Disconnect the battery ground cable.
2. Remove the junction block splash shield.
3. Remove the two cable ends from the starter relay.
4. Remove the two bolts and reposition the junction block bracket.
5. Recover the refrigerant.
6. Disconnect the A/C cycling switch electrical connector.