Refrigerant System Tests

WARNING: This page is about a different car, the 2003 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.

Connect an A/C recovery and/or charging station with gauges, or Connect an R134a manifold gauge set to the refrigerant system. For additional information, see MANIFOLD GAUGE SET CONNECTION .
Set the climate control system to MAX A/C (if equipped), or select A/C and RECIRC (if equipped), at HI blower.

NOTE: When the ambient temperature exceeds 38°C (100°F), do not run the engine above normal idle speed.

Run the engine at 1500 rpm for 10 minutes.
Stabilize the vehicle interior temperature at 21°C to 27°C (70°F to 80°F).
Record the high and low system pressures using the R134a Manifold Gauge Set, and see Fig 1.

Fig 1: Refrigerant System Trouble Shooting Table

Courtesy of FORD MOTOR CO.