Your Vehicle: 2001 Ford Escort ZX2 L4-2.0L DOHC VIN 3
Vehicle » Heating and Air Conditioning » High Pressure Safety Valve HVAC » Description and Operation  
  Description and Operation  

An A/C compressor pressure relief valve is incorporated in the compressor A/C manifold and tube to:

  • relieve unusually high refrigerant system discharge pressure buildups.
  • prevent damage to the A/C compressor and other system components.
  • avoid total refrigerant loss by closing after the excessive pressure has been relieved.