Diagnostic Table

WARNING: This page is about a different car, the 2004 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: The following table is used to guide diagnosis of the refrigerant system if operating pressures are outside normal limits.

Fig 1: High And Low Pressure Description Chart

Courtesy of FORD MOTOR CO.

Refer to the chart below.
^a Low pressure reading will be normal to high if pressure is taken at accumulator and if restriction is downstream of service access valve.

^b Low pressure reading will be low if pressure is taken near the compressor and restriction is upstream of service access valve.