Air Compressor Leak Test
WARNING: This page is about a different car, the 2008 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
Tools Required
- J 22124-B Pressure Gage (0-300 psi)
- J 22124-91 Pressure Gage Adapter
- Attach the J 22124-91 pressure gage adapter to the air dryer.
- Attach the J 22124-B pressure gage to the J 22124-91 pressure gage adapter with the toggle valve on the opposite side of the air compressor. Close the toggle valve.
- Apply air pressure at the schrader valve. Pressurize until the J 22124-B pressure gage reads 690 kPa (100 psi).
- Check the following areas using soap bubbles:
- Solenoid valve
- Air dryer to compressor head O-ring
- Air dryer cover
- Air compressor head gasket
- Air compressor head cover - If necessary, tighten the cover bolts to 5.6 N.m (50 lb in)
If a leak is found, replace the air compressor. Refer to Air Compressor Replacement .