Villager V6-181 3.0L SOHC VIN 1 EFI (1997)
High Pressure Safety Valve HVAC: Description and Operation
A/C High Pressure Safety Valve
A high-pressure relief valve is installed on the discharge manifold on the A/C compressor to relieve excess pressure buildups of 3727 kPa (540 psi) and
above, to prevent damage to the A/C compressor and other A/C components.