General Description

Vehicles using the V5 Compressor may require different installation procedures because of differences in the following components:

- The mounting brackets
- The drive systems
- The pulleys
- The connections
- The system capacities

Basic overhaul procedures for compressors used on different vehicles are similar.

When servicing the compressor, prevent dirt and foreign material from entering the following areas:

- The compressor
- The compressor components
- The system

Ensure that the following items are clean at all times in order to complete proper service of the compressor:

- The work area
- The tools
- The components

Clean the compressor connections and the outside of the compressor prior to any on-vehicle repairs or before removal of the compressor.
Use the following cleaning agents in order to clean any components that will be reassembled:

- Naphtha
- Standard solvent
- Kerosene
- An equivalent

Dry the components with air. Use only lint-free cloths in order to wipe the components.

The operations described in the unit repair procedures for the V5 Compressor are based on a bench overhaul with the compressor removed from the car, except as noted.

Notice: Up to 120 ml (4 oz) of PAG Lubricant can collect in the crankcase. Therefore, it is important when replacing a compressor that the PAG Lubricant in the old compressor crankcase be drained through the drain plug and measured. Discard after recording the amount.

Following the removal of a compressor from the car for service, drain the remaining amount of the PAG lubricant from the compressor. Measure and record the amount of the PAG lubricant drained from the compressor. Discard the old PAG lubricant. Add an equal amount of new PAG lubricant to the compressor.

All replacement compressors are shipped with 270 ml (9 oz) of PAG lubricant in the crankcase. Drain and retain this lubricant. Replace the lubricant in the same amount as previously recorded from the old compressor. Replace the lubricant only with GM approved PAG lubricant.