Air Conditioning: Notes
WARNING: This page is about a different car, the 2004 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
The A/C refrigerant system is a clutch cycling orifice tube type. The system components are:
- A/C compressor (19703)
- A/C compressor clutch field coil (19D798)
- A/C clutch disc and hub (19D786)
- condenser core (19712)
- evaporator core
- suction accumulator (19C836)
- connecting refrigerant lines
The refrigeration system operation is controlled by the:
- evaporator core orifice (19D990).
- A/C cycling switch (19E561).
- A/C pressure relief valve (19D644).
- pressure cutoff switch (19D594).
The refrigerant system incorporates an A/C compressor controlled by the PCM based on various inputs.
The A/C cycling switch senses evaporator core pressure.
An A/C pressure relief valve is installed in the compressor manifold and tube assembly (19D734) to protect the refrigerant system against excessively high refrigerant pressures.
An evaporator core orifice is installed in the evaporator core inlet tube to meter the liquid refrigerant into the evaporator core.