High Pressure Safety Valve HVAC: Service and Repair

REMOVAL
1. Recover the refrigerant.







2. Unlatch the breather.







3. Disconnect the Mass Air Flow (MAF) sensor electrical connector.







4. Remove the air cleaner outlet tube.
1 Loosen the clamp.
2 Disconnect the crankcase ventilation tube.
3 Remove the air cleaner outlet tube.







5. Remove the A/C compressor pressure relief valve.

INSTALLATION
1. To install, reverse the removal procedure.
- Lubricate the O-ring seal with PAG Compressor Oil, YN-12c, F7AZ-19589-DA or equivalent meeting Ford specification WSH-M1C231-B.