Operation CHARM
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GMC Truck
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1987
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R 3500 P/U 2WD V8-305 5.0L
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Repair and Diagnosis
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Sensors and Switches
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Sensors and Switches - Powertrain Management
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Sensors and Switches - Ignition System
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Knock Sensor
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Locations
Knock Sensor: Locations
Fig. 46 Typical Electronic Spark System (ESC):