Check For Leaks

SPECIAL SERVICE TOOL(S) REQUIRED

1. If the compressor is on the vehicle, discharge the system. Remove the compressor from the vehicle.Refrigerant Recovery
2. Remove the manifold retaining bolt and remove the manifold from the rear head of the compressor. Install A/C Pressure Test Adapter T94P-19623-E on the rear head of the compressor using the existing manifold attaching bolt.
3. Connect the high- and low-pressure lines of a manifold gauge set to the corresponding fittings on the A/C Pressure Test Adapter.
4. Attach the center hose of the manifold gauge set to a refrigerant container standing in an upright position.
5. Using the clutch hub, hand rotate the compressor shaft 10 revolutions to distribute the oil inside the compressor.
6. 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 compressor.
7. Using Rotunda R-134a Automatic Calibration Halogen Leak Detector 023-R1003 or equivalent 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 an external leak is found at the center joint of the compressor, install a new compressor assembly.
9. When the leak test is completed, recover the refrigerant, close the manifold gauge valves (both high and low) as well as the valve on the refrigerant container.
10. Slowly remove the gauge set hoses from the pressure test fitting tool.
11. Install the compressor on the vehicle.
12. Leak test, evacuate and charge the system.