Accumulator HVAC: Service and Repair

Fig 25 Accumulator Replacement:

WARNING: Review all WARNINGS and CAUTIONS before performing the following operation.

REMOVAL
1. Disconnect and isolate the battery negative cable.
2. Recover the refrigerant from the refrigerant system.
3. Disconnect the two refrigerant line couplers from the accumulator tubes. Install plugs in, or tape over, all of the open refrigerant fittings.
4. Unplug the wire harness connector from the low pressure cycling clutch switch.
5. Loosen the screw securing the accumulator and band to the mounting bracket.
6. Slide the accumulator and band unit screw out of the slotted hole in the mounting bracket.

INSTALLATION
1. Install the accumulator and band unit screw into the slotted mounting bracket hole.
2. Tighten the screw.
3. Plug the wire harness connector into the low pressure cycling clutch switch.
4. Remove the plugs or tape from the refrigerant line fittings. Connect the refrigerant lines to the accumulator tubes.
5. Evacuate and charge the refrigerant system.
6. Connect the battery negative cable.

NOTE: If the accumulator is replaced, add 120 ml (4 oz) of refrigerant oil to the refrigerant system.