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GMC Truck
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1997
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G 3500 1 Ton Van V8-5.7L VIN R
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Repair and Diagnosis
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Powertrain Management
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Ignition System
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Sensors and Switches - Ignition System
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Hall Effect Sensor
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Description and Operation
Hall Effect Sensor: Description and Operation
Description
The hall effect switch connects to the VCM through the primary engine harness and provides cylinder identification information. The hall effect switch is located under the distributor cap.