GMC Workshop Service and Repair Manuals > R 3500 P/U 2WD V8-350 5.7L (1989) > Powertrain Management | Sensors and Switches - Powertrain Management | Sensors and Switches - Computers and Control Systems | Knock Sensor | Component Information | Locations | Electronic Spark Control Half Function Box

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Knock Sensor: Locations
Electronic Spark Control Module

ESC Module.

RH Top Of Engine

Applicable to: R, V & P Series

GMC Workshop Service and Repair Manuals