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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A8: Check Air Conditioner Controls
A8: Check Air Conditioner Controls
Fig. 61 Compressor clutch diagnosis (Tests A8, A9 & A10):