Ford Mustang (1999-2004) Service Manual: 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, is sealed with O-ring seals, and has the following features:

  • The upstream side contains low pressure refrigerant gas.
  • The downstream side contains high pressure refrigerant gas and a fitting used to mount a serviceable high pressure A/C charge port valve.
  • The downstream side also contains a fitting used to mount the refrigerant containment switch (3.8L) or dual-function pressure switch (4.6L). A long-travel Schrader-type valve stem core is installed in the fitting so that the switch can be removed without discharging the A/C system.

A/C Evaporator Core

A/C Evaporator Core

NOTE: The evaporator core is not separately serviceable, it is serviced only with the evaporator core housing assembly.

NOTE: Installation of a new suction accumulator is not required when repairing the air conditioning system except when there is physical evidence of contamination from a failed A/C compressor or damage to the suction accumulator.

The A/C evaporator core is the plate/fin type with a unique refrigerant flow path.

  • A mixture of refrigerant and oil enters the bottom of the A/C evaporator core through the A/C evaporator core inlet tube and moves out of the A/C evaporator core through the A/C evaporator core outlet tube.
  • This flow pattern accelerates the flow of refrigerant and oil through the A/C evaporator core.
    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 ...

    Evaporator Core Orifice
    NOTE: The evaporator core orifice is an integral part of the condenser to evaporator line and should be installed as an assembly with the line. NOTE: A new evaporator core orifice should be instal ...

    Other materials:

    Piston - Pin to Bore Diameter
    1. WARNING: Cover the end of the pin bore with a hand or shop rag when removing the retainer ring, since it has a tendency to spring out. Wear eye protection. NOTE: Piston and piston pins are a matched set and should not be interchanged. Measure the pisto ...

    Rocker Arms - Inspection
    CAUTION: Do not attempt to true surfaces by grinding. Check the rocker arm pad, side rails and seat for excessive wear, cracks, nicks or burrs. Check the rocker arm seat bolt for stripped or broken threads. Install new components as ncessary or possible ...

    Wheel Hub - Cobra
    Special Tool(s) 2-3 Jaw Puller 205-D026 (D80L-1013-A) or Equivalent Driver 205-199 (T83T-3132-A1) Front Hub Remover Replacer 204-069 (T81P-1104-C) Hub Bearing Remover 204-081 (T83P-1104-AH2) ...