Your Vehicle: 2001 Ford Escort ZX2 L4-2.0L DOHC VIN 3
Vehicle » Heating and Air Conditioning » Service Port HVAC » Description and Operation  
  Description and Operation  


The high-pressure service gauge port valve is located on the front condenser to evaporator tube.


The low pressure service gauge port valve is located on the A/C manifold and tube.

Service Gauge Port Values

The fitting is an integral part of the refrigeration line or component.

  • Special couplings are required for both the high side and low side service gauge ports.
  • The Schrader-type valve core can be serviced if the seal leaks.
  • Always install the A/C charging valve cap on the service gauge port valves after repairing the refrigerant system.