Operation CHARM
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GMC Truck
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1983
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C 2500 3/4 Ton Pickup 2WD L6-292 4.8L VIN T 1-bbl
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Repair and Diagnosis
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Powertrain Management
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Fuel Delivery and Air Induction
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Fuel Tank
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Testing and Inspection
Fuel Tank: Testing and Inspection
Auxiliary Fuel Tank Selector Diagnostic Chart: