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Accumulator HVAC: Service and Repair

REMOVAL

WARNING: REVIEW THE WARNINGS AND CAUTIONS OF THIS SECTION BEFORE PERFORMING THE FOLLOWING OPERATION Service Precautions.


1. Disconnect and isolate the battery negative cable.
2. Recover the refrigerant from the refrigerant system.
3. Remove the a/c low pressure switch from the accumulator.
4. Loosen the screw that secures the accumulator retaining band to the support bracket on the dash panel.
5. Disconnect the suction line refrigerant line fitting from the accumulator outlet. (Refer to A/C LINE COUPLERS Coupler HVAC) Install plugs in, or tape over all of the opened refrigerant line fittings.
6. Disconnect the accumulator inlet refrigerant line fitting from the evaporator outlet. Install plugs in, or tape over all of the opened refrigerant line fittings.
7. Pull the accumulator out of the retaining band.
8. Remove the accumulator from the engine compartment.

INSTALLATION
1. Install the accumulator in the retaining band.
2. Remove the tape or plugs from the refrigerant line fittings on the accumulator inlet and the evaporator outlet. Connect the accumulator inlet refrigerant line coupler to the evaporator outlet. (Refer to A/C LINE COUPLERS Coupler HVAC)
3. Tighten the accumulator retaining band screw to 4.5 Nm (40 in. lbs.).
4. Remove the tape or plugs from the refrigerant line fittings on the suction line and the accumulator outlet. Connect the suction line refrigerant line coupler to the accumulator outlet.
5. Reinstall the a/c low pressure switch on the accumulator. (Refer to A/C LOW PRESSURE SWITCH - INSTALLATION Refrigerant Pressure Sensor / Switch).
6. Connect the battery negative cable.
7. Evacuate the refrigerant system. (Refer to REFRIGERANT SYSTEM EVACUATE Service and Repair).
8. Charge the refrigerant system. (Refer to REFRIGERANT SYSTEM CHARGE Service and Repair).

NOTE: If the accumulator is replaced, add 60 milliliters (2 fluid ounces) of refrigerant oil to the refrigerant system. Use only refrigerant oil of the type recommended for the compressor in the vehicle.
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