Operation CHARM
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Ford Truck
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1992
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E 250 Van V8-7.3L DSL
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Repair and Diagnosis
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Relays and Modules
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Relays and Modules - HVAC
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Compressor Clutch Relay
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Testing and Inspection
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A4: Check System Pressure
A4: Check System Pressure
Fig. 60 Compressor clutch diagnosis (Tests A1, A2, A3, A4, A5, A6 & A7):
