Accumulator HVAC: Service and Repair

Suction Accumulator





Removal and Installation

NOTE: Installation of a new suction accumulator is not required when repairing the A/C system, except when there is physical evidence of contamination from a failed A/C compressor or damage to the suction accumulator. Damage to the suction accumulator includes leaks in the suction accumulator, physical damage to the suction accumulator shell or desiccant, or moisture contamination. Moisture contamination results only from a complete loss of refrigerant, and equalization of the refrigerant system pressure with atmospheric pressure for a period longer than one hour. If even a slight amount of positive refrigerant pressure is present in the refrigerant system before repairs are carried out, the suction accumulator should not be replaced.

1. Recover the refrigerant. For additional information, refer to Climate Control System - General Information and Diagnostics Air Conditioning (A/C) System Recovery, Evacuation and Charging.

2. Disconnect the A/C cycling switch electrical connector.





3. NOTICE: Use a back-up wrench to prevent damage to the tubes.

Disconnect the suction accumulator inlet and outlet fittings.

- Discard the O-ring seals.

- To install, tighten the inlet fitting to 39 Nm (29 lb-ft).





4. Remove the suction accumulator bracket screws and the suction accumulator.





5. To install, reverse the removal procedure.
- Install new O-ring seals.

- Lubricate the refrigerant system with the correct amount of clean PAG oil or equivalent. For additional information, refer to Climate Control System - General Information and Diagnostics Refrigerant Oil Adding.

6. Evacuate, leak test and charge the refrigerant system. For additional information, refer to Climate Control System - General Information and Diagnostics Air Conditioning (A/C) System Recovery, Evacuation and Charging.