Operation CHARM
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Ford Truck
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1990
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E 350 Van V8-7.3L DSL
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Repair and Diagnosis
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Heating and Air Conditioning
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Testing and Inspection
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Heating System Diagnosis
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Insufficient Cooling, Heater
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A1: Verify Condition
A1: Verify Condition
Fig. 16 Insufficient A/C cooling diagnosis (Test A1, A2, A3 & A4). Light trucks:
