Expansion Valve: Service and Repair

A/C EXPANSION VALVE

REMOVAL
1. Recover refrigerant from the A/C system with a refrigerant recovery machine.
2. Remove the A/C plumbing lines at expansion valve.

NOTE: Cap lines while system is open to prevent moisture from entering system.

Evaporator Housing Seals:

3. Remove two retaining bolts from expansion valve and remove valve.
4. Remove expansion valve.

INSTALLATION
1. Install a NEW O-rings and install valve on evaporator.
2. Install expansion valve bolts and tighten to 7 Nm (60 in. lbs.).
3. Install NEW O-rings and install A/C lines on expansion valve.
4. Tighten the bolts to 8 Nm (71 in. lbs.).
5. Evacuate the HVAC system.
6. Charge the HVAC system.