Operation CHARM
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Ford Truck
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1990
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E 350 Van V8-460 7.5L
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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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A1: Check System Operation
A1: Check System Operation
Fig. 60 Compressor clutch diagnosis (Tests A1, A2, A3, A4, A5, A6 & A7):