Compressor Assembly On-Vehicle Inspection

WARNING: This page is about a different car, the 2007 Suzuki Grand Vitara and 2006 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.

Install manifold gauge set (1) as shown in figure.
Close Hi (4) and Lo (5) side valves.

Fig 1: Identifying High Pressure Charging Valve, Low Pressure Charging Valve & High/Low Charging Hose
Courtesy of SUZUKI OF AMERICA CORP.
Run engine at fast idle.
Check compressor for the following items.
If any of the checks indicated a defect, repair compressor.
- High pressure gauge reading is not low and low pressure gauge reading is not higher than normal.
- Metallic sound
- Leakage from compressor