Expansion Valve: Service and Repair

REMOVAL
1. Remove engine cover. Refer to "ENGINE ROOM COVER" .
2. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.




3. Drain coolant from cooling system and disconnect heater hoses. Refer to "Changing Engine Coolant" .
4. Disconnect low-pressure flexible hose and high-pressure pipe from the evaporator.




5. Remove high-pressure pipe from clip.




6. Remove expansion valve cover.
7. Remove expansion valve.

INSTALLATION
Installation is basically the reverse order of removal.

CAUTION:
- Replace O-rings with new ones, then apply compressor oil to them when installing them.
- When recharging refrigerant, check for leaks.

Bolts mounting the expansion valve
Tightening torque : 2.9 - 4.9 Nm (0.29 - 0.50 kg.m, 26 - 43 in-lb)

Bolt mounting the low-pressure flexible hose and high-pressure pipe
Tightening torque : 2.9 - 5.9 Nm (0.29 - 0.6 kg.m, 26 - 52 in-lb)