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GMC
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2002
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C3500 HD 8.1 G, Standard
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - 8.1L
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Repair Instructions
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Knock Sensor (KS) 1 Replacement
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Removal Procedure
Removal Procedure
Raise the vehicle.
Remove the wiring harness connector (1) from the knock sensor (KS) (2).
Remove the KS (2) from the engine block.
Fig 1: Knock Sensor & Harness Connector
Courtesy of GENERAL MOTORS CORP.