OEM 2003 Toyota Corolla A/C Compressor

2003 Toyota Corolla A/C Compressor Parts Q&A

• Q: How to replace the A/C Compressor and its magnetic clutch in a refrigeration system on 2003 Toyota Corolla?

  A: The first step to replace the compressor and magnetic clutch requires exhausting refrigerant from the refrigeration system by using Special Service Tool: 07110-58060 (07117-58080, 07117-58090, 07117-78050, 07117-88060, 07117-88070, 07117-88080). The procedure for removing Cleaner cooler refrigerant suction hose No.1 requires users to remove its bolt and o-ring and cover both openings with vinyl tape to stop moisture and foreign matter from entering. The second task involves removing the discharge hose sub-assy through bolt removal and O-ring extraction and sealing the exposed ends using vinyl tape. The procedure starts by removing the engine under cover RH and fan and generator V belt then proceeding to disconnect compressor and magnetic clutch connectors while removing three bolts. You should place the compressor in a vise clamp before removing the bolt with vise pliers while taking off the hub along with the washer from the magnet clutch assembly. The snap ring expander lets you extract both the snap ring and rotor before you uninstall the connector and remover the snap ring and starter. Move on to uninstall the components of the cooler compressor. The installation process for the magnet clutch assembly starts with part matching according to the visuals followed by starter installation and utilization of a snap ring expander to put in the new snap ring with the chamfered side facing upwards. After installing the screw and connector, add the rotor together with another new snap ring that has its chamfered side facing upward and then attach the washer and hub maintaining the original magnet clutch washer arrangement. Use a 18 Nm (183 kgf.cm, 13 ft.lbf) torque value to fasten the hub by bolt. An inspection of the magnetic clutch requires a dial indicator during which you should connect the battery leads to the magnet clutch connector while measuring the clearance within 0.35 - 0.60 mm (0.013 - 0.023 in.) range. Use three maximum number of magnet clutch washers to reposition the clearance when it exists the recommended range. To replace the compressor and magnetic clutch drain the necessary oil amount by subtracting the remaining oil amount from the new unit oil capacity which equals 120 + 15 cc (4.0 + 0.5 fl.oz.). Use ND-OIL8 for compressor oil. You should torque the compressor and magnetic clutch with three bolts to 29 Nm (295 kgf.cm, 21 ft.lbf) after installation then connect the connector. The discharge hose sub-assy installation requires compressor oil application onto the new O-ring and fitting surface before torquing the bolt to 9.8 Nm (100 kgf.cm, 87 in.lbf). Rephrase and tighten the bolt connecting cooler refrigerant suction hose No.1 with 9.8 Nm (100 kgf.cm, 87 in.lbf) after applying compressor oil to its new O-ring and fitting surface. Finish the charging of refrigerant by using Special Service Tools: 07117-48130, 07117-48140, 07110-58060 (07117-58060, 07117-58070, 07117-58080, 07117-58090, 07117-78050, 07117-88060, 07117-88070, 07117-88080) and 490 plus or minus 30 g (17.28 plus or minus 1.06 oz.) of specified amount while engine heating and checking for refrigerant leaks.