Compressor On-Vehicle Inspection

WARNING: This page is about a different car, the 2004 Suzuki Vitara. However, it is still accessible from the selected car via links, so may be relevant.

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

Fig 1: Installing Manifold Gauge Set

Courtesy of SUZUKI OF AMERICA CORP.

Run engine at fast idle.
Check compressor for the following:
If any of the following checks indicated a defect, repair compressor.
1. High pressure gauge reading is not low and low pressure gauge reading is not higher than normal.
2. Metallic sound.
3. Leakage from shaft seal.