A/C Compressor - External Leak Test
WARNING: This page is about a different car, the 2010 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
- Install the appropriate fittings from the A/C Flush Adapter Kit on the rear head of the A/C compressor using the existing retaining bolts.
- Connect the high and low pressure lines of a manifold gauge set or a refrigerant recovery/recycling station, such as the R-134a A/C Service Center, to the corresponding fittings on the A/C pressure test adapter.
- Attach the center hose of the R-134a Manifold Gauge Set to a refrigerant container standing in an upright position.
- Hand-rotate the compressor shaft 10 complete revolutions to distribute the oil inside the A/C compressor.
- Open the low-pressure gauge valve, the high-pressure gauge valve and the valve on the refrigerant container to allow the refrigerant vapor to flow into the A/C compressor.
- Using the Refrigerant Leak Detector, check for leaks at the compressor shaft seal and the compressor center seal.
- If a shaft seal leak or an external leak is found at the A/C compressor, install a new A/C compressor.
- When the leak test is complete, recover the refrigerant from the compressor.