Expansion Valve: Service and Repair

A/C Expansion Valve Removal and Installation

A/C Expansion Valve Removal




1. Remove the retaining nuts that secure the suction hose and the liquid evaporator pipe blocks at the fire wall.
2. Remove the expansion valve bolts.
3. Remove the expansion valve.




4. Remove the O-rings from the evaporator lines.

A/C Expansion Valve Installation

1. Clean the O-ring surface areas of dirt or contamination.
2. Install the new O-rings on the evaporator lines.
3. Install a new expansion valve onto the evaporator lines.




4. Insert the expansion valve bolts through the expansion valve into the mount surface of the evaporator flange.

Tighten:
Tighten the expansion valve bolts to 10 N.m (89 lb.in).




5. Install the retaining nuts that secure the suction hose and the liquid evaporator pipe blocks at the fire wall.

Tighten:
Tighten the suction hose and the liquid evaporator pipe retaining nuts to 10 N.m (89 lb.in).