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Home >> Saturn >> 2002 >> L200 L4-2.2L VIN F >> Repair and Diagnosis >> Heating and Air Conditioning >> Testing and Inspection >> Component Tests and General Diagnostics >> A/C System Performance Test >> Specific System Condition >> Specific System Condition - Compressor No-Pump
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Specific System Condition - Compressor No-Pump

IMPORTANT: Make sure manifold gauge set valves are closed.

Specific System Condition - Compressor No-Pump - L61:




KEY: NO CHANGE IN SUCTION AND DISCHARGE PRESSURES WITH COMPRESSOR ENGAGED. GAUGE PRESSURES WILL BE ALMOST EQUAL.

THEN: Most likely the vanes are not extending to the cylinder walls.
^ Run engine at 2000 RPM and cycle compressor on and off two or three times.
^ If pressure remains static, engage compressor and snap engine throttle two or three times.
^ If pressure still remains static replace compressor.
^ After repair return to diagnostic flow chart.