Toyota 88320-21100
Compressor

The first step to replace or remove an HVAC compressor requires that the refrigerant gas is discharged from the refrigeration system. The process starts with disconnecting and waiting at least 90 seconds on the negative battery terminal cable before proceeding. Due to moisture and foreign matter prevention the operator disconnects the No. 1 cooler refrigerant suction hose by unthreading the bolt from the O-ring before sealing each hose opening with vinyl tape. For the No. 1 cooler refrigerant discharge hose function according to the same method by removing the bolt and O-ring while sealing all openings with vinyl tape. First remove the engine under cover from the right-hand side followed by fan and generator V belt removal. To remove the cooler compressor assembly disconnect its connector and remove four bolts which will allow you to extract it.

The first step for removing the HVAC compressor requires refrigerant discharge from the refrigeration system followed by waiting 90 seconds to disconnect the negative battery terminal cable and disable Air Bags and pretensioners. You must disconnect the No.1 cooler refrigerant suction hose while removing its bolt and O-ring and use vinyl tape to seal the openings to keep moisture along with foreign matter from entering. The same procedure should be used to disconnect the No.1 cooler refrigerant discharge hose. The first step involves removing the engine under cover RH, the fan as well as generator V belt followed by disconnecting the connector and removing the four bolts from the cooler compressor assembly. The cooler compressor assembly requires four bolts for installation at 25 N.m torque strength (255 kgf.cm, 18 ft.lbf). Reconnect the connector afterwards. For installing the No.1 cooler refrigerant discharge hose first remove its vinyl tape then apply compressor oil (ND-OIL 8 or equivalent) to a new O-ring and the fitting surface before installing the O-ring and securing the hose with a bolt torqued to 9.8 N.m (100 kgf.cm, 7 ft.lbf). You should follow the same installation sequence for the No.1 cooler refrigerant suction hose. Finally reconnect the cable to the negative battery terminal while you reattach the generator V belt and fan as well as the engine under cover RH. Multiple systems need initialization following a battery reconnection procedure. The refrigerant charging process requires engine warming and full refrigerant leak inspection.

Perform initialization as certain systems require it.