Ford Mustang (1999-2004) Service Manual: A/C Compressor Pressure Relief Valve

A/C Compressor Pressure Relief Valve

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

  • relieve unusually high refrigerant system discharge pressure buildups. For specifications regarding operating pressure(s), refer to Section.
  • prevent damage to the A/C compressor and other system components.
  • avoid total refrigerant loss by closing after the excessive pressure has been relieved.

A/C Condenser Core

A/C Condenser Core

The A/C condenser core has the following characteristics:

  • It is an aluminum fin and tube design heat exchanger located in front of the vehicle radiator (8005).
  • It cools compressed refrigerant gas by allowing air to pass over fins and tubes to extract heat and by condensing gas to liquid refrigerant as it is cooled.
    A/C Compressor and Clutch Assembly
    NOTE: Internal A/C compressor components are not serviced separately. The FS-10 A/C compressor is serviced only as an assembly. The A/C clutch pulley, A/C clutch field coil (19D798) and the shaft ...

    Refrigerant Lines
    The condenser to evaporator tube (19835) contains the high pressure liquid refrigerant upstream of the evaporator core orifice. The A/C manifold and tube (19D734) is attached to the A/C compressor, ...

    Other materials:

    Electronic Vibration Analyzer (EVA)
    The EVA is a hand-held electronic diagnostic tool which will assist in locating the source of unacceptable vibrations. The vibration sensor can be remotely mounted anywhere in the vehicle for testing purposes. The unit displays the three most common vibratio ...

    Pinpoint Tests
    CAUTION: Before removing and installing the generic electronic module (GEM) or its connectors, disconnect the battery. Failure to follow this caution will result in the GEM storing many erroneous DTCs, and it may exhibit erratic operation after in ...

    Pinpoint Test E: LFC 15/DTC B1916 - Driver Air Bag Circuit Shorted to Battery or Ignition
    Normal Operation The restraints control module (RCM) checks for driver air bag circuit shorts to battery or ignition by monitoring the voltage of circuit 614 (GY/OG) and 615 (GY/WH) at pins 3 and 4. If the RCM detects a short to battery or ignition on e ...