Grand Cherokee 2WD L6-242 4.0L VIN S MFI (1993)
High Pressure Safety Valve HVAC: Service and Repair
REMOVAL
1. Disconnect the negative cable from the battery.
2. Discharge the A/C refrigerant system into a recovery/recycle device.
See: Refrigerant
Fig.6 High Pressure Relief Valve
3. Rotate the high pressure relief valve counterclockwise and separate relief valve from the vehicle.
INSTALLATION
1. Install the high pressure relief valve.
2. Evacuate the A/C system.
3. Charge the A/C system.
See: Refrigerant
4. Connect the negative cable to the battery.