Trooper LS V6-3.5L (1998)
High Pressure Safety Valve HVAC: Service and Repair
Removal
1. Recover the refrigerant using Refrigerant Recovery System.
2. Remove old pressure relief valve.
Installation
1. Clean valve seat area on rear head.
2. Lubricate O-ring of new pressure relief valve and O-ring assembly with new 525 viscosity refrigerant oil. Install new valve and torque in place,
9.0 N.m (6.1 ft lbs)
3. Evacuate and recharge the system.
4. Leak test system.
