Operation CHARM
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GMC Truck
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1983
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C 2500 3/4 Ton Pickup 2WD V8-305 5.0L VIN H 4-bbl
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Repair and Diagnosis
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Powertrain Management
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Ignition System
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Electronic Spark Control Module
Electronic Spark Control Module
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Testing and Inspection
Locations
Typical Electronic Spark System (ESC)
Typical ESC Controller
