Air Compressor Leak Test
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Special Tools
- J 22124-B Pressure Gauge (0-300 psi)
- J 22124-91 Pressure Gauge Adapter
- Attach the J 22124-91 pressure gauge adapter to the air dryer.
- Attach the J 22124-B pressure gauge to the J 22124-91 pressure gauge 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 gauge 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 (50 lb in).
If a leak is found, replace the air compressor. Refer to Air Compressor Replacement .