Corolla | 2014-2019 | 50th Anniversary Special Edition, L, LE, LE Eco, Le Eco Plus, S, SE, Special Edition, XLE, XSE | 4 Cyl 1.8 L GAS
RAV4 | 2013-2018 | Adventure, Hybrid Limited, Hybrid SE, Hybrid XLE, LE, Limited, Platinum, SE, XLE | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS
Q: How to service and repair the A/C Expansion Valve in a refrigeration system on Toyota Camry?
A: The service process for the expansion valve begins with refrigerant evacuation from the system through the use of liquid and suction tubes which should later be disconnected from the A/C unit. Detach the blower unit first by removing the piping clamp then carefully extract the packing because it cannot be reused before using a hexagon wrench to remove the 2 bolts separating the expansion valve from the evaporator. Attach the liquid tube and suction tube to the expansion valve after applying compressor oil to four new O-rings before installation. Apply new packing to the expansion valve by removing and peeling the packing paper then position it with bolt hole visible while placing it without tape beyond the expansion valve edges. Use 2 bolts to fasten the expansion valve but tighten them to 5.4 N.m (55 kgf.cm, 48 in.lbf) while inspecting for evaporator interference and applying compressor oil to 2 new O-rings before their installation. The technician must reinstall the blowers and glove compartment before connecting liquid and suction tubes to the A/C unit and follows vacuum evacuation then fills the system with 800 plus or minus 50 g (28.22 plus or minus 1.76 oz.) of refrigerant. End the inspection by using a gas leak detector to find refrigerant losses and aligning joint torques when leakages occur.
Q: How to service and repair the A/C Expansion Valve in a refrigeration system on Toyota Echo?
A: Refrigerant discharge from the refrigeration system must be performed first as part of expansion valve service work. You must disconnect the A/C unit's liquid tube and suction hose before separating the expansion valve from the evaporator by using a hexagon wrench (5.0 mm, 0.20 in.) to remove its 2 bolts. The installation torque should be 5.4 Nm (55 kg.cm, 48 in.lb). New O-rings receive compressor oil lubrication before going on the expansion valve. Then secure the unit with two bolts tight by using a hexagon wrench set at 5.0 mm, 0.20 in. at 3.4 Nm torque (35 kg.cm and 30 in.lb). After connecting the liquid tube with the suction hose complete the charging process by evacuating the refrigeration system and adding 460 plus or minus 30 g (16.23 plus or minus 1.06 oz) refrigerant under strict leakage inspection.
Q: How to service the rear A/C expansion valve on Toyota Sequoia?
A: Service of the rear A/C expansion valve begins by firstly removing the refrigerant from the refrigeration system alongside an air evacuation process and subsequent refrigerant addition of 1050 plus or minus 50 g (37.03 plus or minus 1.76 oz.) with leak detection necessary. Engine coolant draining from the radiator will be required but you do not need to empty the entire coolant from the system. Break the A/C expansion valve replacement by removing the rear seat belt floor anchors from both sides as well as the backdoor scuff plate, rear door scuff plate on the right-hand side, upper back door garnish, rear window side garnish on the right-hand side and rear quarter trim panel RH and quarter pillar garnish RH. Yield liquid and suction tubes by replacing 2 bolts with new O-rings which requires lubrication with compressor oil. The removal process begins with detaching the 3 clips, cover and 2 air ducts before releasing the wire harness clamps and connectors. Removing the expansion valve begins by taking out its four screws and two brackets followed by slowly pulling out the packing if no damage occurs while you use a 5.0 mm (0.20 in.) hexagon wrench to uninstall the 2 bolts which require torque at 5.4 N.m (55 kgf.cm, 48 in.lbf) before removing the additional 3 bolts. Users should lift the A/C unit to reach the tube and accessory before disconnecting the heat sensing tube while using a torque wrench to loosen the 2 nuts to take out the expansion valve (Nut A torque set at 13 N.m (135 kgf.cm, 10 in.lbf); Nut B torque set at 22 N.m (235 kgf.cm, 16 in.lbf)). The installation requires applying compressor oil to two new O-rings after which you should execute the steps in reverse order of removal.