Service and repair of the compressor clutch follow these steps: let the engine reach idle speed with A/C turned on for ten minutes before engine shutdown and battery terminal cable detaching. Eliminate refrigerant from the refrigeration system before proceeding to remove the
Drive Belt. When working on 1MZ-FE engines begin by removing the suction hose through bolt removal from its clamp then disconnect the wire harness clamp and unscrewing all nut and bolt components. Immediately place caps over open system fittings in order to block out moisture and dirt intrusion. Proceed with disconnecting the discharge hose after you remove its bolt and apply caps to the exposed fittings. You should start by disconnecting the generator connector followed by taking out the nut and wire before disconnecting the wire harness from its clip and taking out the pivot bolt and plate washer along with the adjusting lock bolt. Connect 5S-FE engine models by detaching suction and discharge hoses through the removal of two bolts followed by fitting caps to the ends. Detach the compressor by disconnecting the connector while removing its three bolts. Engine 1MZ-FE requires users to disconnect the connector before removing two bolts and a nut with the drive belt adjusting bar bracket followed by taking out the compressor through three bolt removal. The installation of the compressor for 5S-FE engine models necessitates bolt installation at three locations with the torque set to 25 N.m (250 kgf.cm, 18 ft.lbf) and connector attachment afterwards. To install the compressor on 1MZ-FE engines position the three bolts with equal torque while next installing the drive belt adjusting bar bracket through two bolts and a nut which needs tightening to 25 N.m (250 kgf.cm, 18 ft.lbf) for Bolt (A), 18 N.m (185 kgf.cm, 13 ft.lbf) for bolt (B) and 25 N.m (250 kgf.cm, 18 ft.lbf) for the nut before connecting the connector. Attach 2 bolts on the discharge and suction hoses of 5S-FE engine models while torquing them to 10 N.m (100 kgf.cm, 7 ft.lbf). Before hose installation, apply compressor oil to two new O-rings. On 1MZ-FE engine models position the generator on its bracket using the pivot bolt and adjusting lock bolt but maintain them loose before connecting both the generator connector and generator wire with its nut. The compressed air hose requires installation using a bolt securing it with 10 N.m (100 kgf.cm, 7 ft.lbf) torque strength during which compressing oil should be used to lubricate the new O-ring before assembly. The procedure begins with plumbing and tightening the suction hose join by screwing the bolt and nut to 32 N.m (330 kgf.cm, 24 ft.lbf) values at the piping intersection then continuing with suction hose clamping bolt installation and wire harness clamp attachment. Install the drive belt next then restore the negative terminal cable connection before evacuating air from the system and charging it with 800 plus or minus 50 g (28.22 plus or minus 1.76 oz.) of refrigerant. A gas detector should be used to check for leaks while technicians should refasten loose joints with their specified torque settings. When leaks are identified the system should undergo an A/C operation check together with additional testing for leakage.