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Mercury
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1991
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Tracer L4-110 1.8L DOHC
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Repair and Diagnosis
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Heating and Air Conditioning
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Compressor HVAC
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Compressor Clutch
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Testing and Inspection
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Pinpoint Tests
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NC4: Clutch Cycling Pressure Switch (CCPS) Function
NC4: Clutch Cycling Pressure Switch (CCPS) Function
Fig. 37 Compressor clutch diagnosis (Test NC4):