GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Opel 🢒 2009 🢒 Insignia Wagon (Global Epsilon) 🢒 HVAC 🢒 Heating, Ventilation, and Air Conditioning 🢒 Air Conditioning Compressor Oil Diagnosis

Note: To avoid repeat compressor failure, always inspect the condition of the refrigerant oil and take the appropriate corrective action before installing the replacement compressor.

Condition

Corrective Action

Clean Oil no debris present

No corrective action necessary.

Clean Oil with debris present
    • Replace desiccant or component containing the desiccant.
    • Replace desiccant filter if applicable.
    • Remove and inspect high pressure side filter (if applicable).
    • Remove, inspect, clean, or replace orifice tube (if applicable).
    • If the system has a front orifice tube and is equipped with a filter in the rear auxiliary line, remove, inspect, clean, or replace the filter.

Dark brown/black and/or pungent/unusual odor with no debris present
    • Replace desiccant or component containing the desiccant.
    • Replace desiccant filter if applicable.
    • Flush refrigerant system.

Dark brown/black and/or pungent/unusual odor with debris present
    • Replace desiccant or component containing the desiccant.
    • Replace desiccant filter if applicable.
    • Flush refrigerant system.
    • Remove and inspect high pressure side filter (if applicable).
    • Remove, inspect, clean, or replace orifice tube (if applicable).
    • If the system has a front orifice tube and is equipped with a filter in the rear auxiliary line, remove, inspect, clean, or replace the filter.

Oil Overcharge

Flush refrigerant system.

Refrigerant Contamination

Flush refrigerant system.

Hybrid Polyolester Refrigerant Oil (POE) Contamination
    • Flush refrigerant system.
    • Replace desiccant or component containing the desiccant.
    • Replace desiccant filter if applicable.