Ford Mustang (1999-2004) Service Manual: Air Conditioning (Description and Operation)
The A/C refrigerant system is a clutch cycling orifice tube type. The system components are:
- A/C compressor (19703)
- A/C clutch (2884)
- A/C condenser core (19712)
- A/C evaporator core (19860)
- suction accumulator (19C836)
- connecting refrigerant lines
The refrigeration system operation is controlled by the:
- A/C evaporator core orifice (19D990).
- A/C cycling switch (19E561).
- A/C compressor pressure relief valve (19D644).
- Refrigerant containment switch (3.8L) (19D594).
- Dual-function pressure switch (4.6L) (19D594).
The refrigerant system incorporates an A/C compressor controlled by an A/C cycling switch.
The A/C cycling switch senses A/C evaporator core pressure to control A/C compressor operation.
An A/C compressor pressure relief valve is installed in the A/C manifold and tube (19D734) to protect the refrigerant system against excessively high refrigerant pressures.
An evaporator core orifice is installed in the A/C evaporator core inlet tube to meter the liquid refrigerant into the A/C evaporator core.
A refrigerant containment switch is installed on 3.8L vehicles to cut-off A/C compressor operation in the event of abnormally high refrigerant system pressure.
A dual-function pressure switch is used on 4.6L vehicles for cooling fan control, and to cut-off A/C compressor operation in the event of abnormally high refrigerant system pressure.
Refrigeration System Components
- A/C Compressor and Clutch Assembly
- A/C Compressor Pressure Relief Valve
- Refrigerant Lines
- Evaporator Core Orifice
- Suction Accumulator
- Dual-Function Pressure Switch (4.6L)
- Spring Lock Coupling
Air Conditioning
General Specifications Torque Specifications ...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 ...Other materials:
Information messages
Note: Depending on the vehicle options equipped with your vehicle, not
all of the messages will display or be available. Certain messages may be
abbreviated or shortened depending upon which cluster type you have.
Press the RESET button for Type 1 displays or ...
Connecting Rod - Twist
1. Measure the connecting rod twist on a suitable alignment fixture.
Follow the instructions of the
fixture manufacturer. Verify the measurement is within specification.
Refer to the appropriate section in Group for the procedure.
If out of specificat ...
Security Access - Procedure
Special Tool(s)
Worldwide
418-F224,
New Generation STAR (NGS)
Tester
418-F052, or equivalent
diagnostic tool
NOTE: The security access procedure is utilized to obtain passive anti-theft
system (PATS) security
access. PATS security acce ...