Check For Leaks

SPECIAL TOOLS

1. Remove the A/C compressor from the vehicle.
2. Install A/C Pressure Test Adapter to the A/C compressor using the existing manifold bolt.
3. Connect the high and low pressure lines of R-134a Manifold Gauge Set to the fittings on A/C Pressure Test Adapter.
4. Attach the center hose of R-134a Manifold Gauge Set to a refrigerant container standing in an upright position.
5. Hand rotate the compressor shaft ten revolutions to distribute the oil inside the A/C compressor.
6. Open the low and high pressure gauge valves and the valve on the refrigerant container to allow the refrigerant vapor to flow into the A/C compressor.
7. Use R-134a Automatic Calibration Halogen Leak Detector to check for leaks at the compressor shaft seal and the compressor center seal.
8. If a shaft seal leak is found, install a new shaft seal. If a leak is found at the compressor center seal, install a new A/C compressor.
9. When the leak test is finished, close the manifold gauge valves and the valve on the refrigerant container.
10. Slowly remove the gauge set hoses from A/C Pressure Test Adapter. Allow the refrigerant in the compressor to escape.
11. Install the A/C compressor on the vehicle.
12. Evacuate, charge and leak test the system.