A/C Compressor, External Leak Test
WARNING: This page is about a different car, the 2002 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
- Install A/C pressure test adapter on rear head of compressor using existing manifold retaining bolt.
- Connect high and low pressure lines of a manifold gauge set to corresponding fittings on A/C pressure test adapter.
- Attach center hose of manifold gauge set to a refrigerant container standing in an upright position.
- Hand-rotate compressor shaft 10 complete revolutions to distribute oil inside compressor.
- Open low pressure gauge valve, high pressure gauge valve and valve on refrigerant container to allow refrigerant vapor to flow into compressor.
- Using Automatic Calibration Halogen Leak Detector, check for leaks at compressor shaft seal and compressor center seal.
- If a shaft seal leak is found, install a NEW shaft seal. If an external leak is found at center joint of compressor, install a NEW compressor.
- When leak test is complete, recover refrigerant from compressor.