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

Refrigeration System Components

 

Refrigeration System Components

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:

Piston - Ring End Gap
CAUTION: Use care when fitting piston rings to avoid possible damage to the piston ring or the cylinder bore. CAUTION: Piston rings should not be transferred from one piston to another. NOTE: Cylinder bore must be within specification for taper and out-of ...

Battery Tray
Removal and Installation WARNING: Batteries normally produce explosive gases which can cause personal injury. Therefore, do not allow flames, sparks or lighted substances to come near the battery. When charging or working near a battery, always sh ...

Installation
1. CAUTION: The timing chain procedures must be followed exactly or damage to the valve and pistons will result. Compress the tensioner plunger, using an edge of a vise. 2. While holding the ratchet mechanism, push the ratchet arm back into the tensioner ...