GMC Workshop Service and Repair Manuals > R 3500 P/U 2WD V8-350 5.7L (1989) > Powertrain Management | Ignition System | Knock Sensor | Component Information | Locations | Page 2831

Electronic Spark Control Half Function Box|Page 2832 > < Electronic Spark Control Half Function Box|Page 2830

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Knock Sensor: Testing and Inspection

Chart C-5 - Electronic Spark Control System Check

Powertrain Management
Ignition System
Knock Sensor / Locations
Page 2831

Electronic Spark Control Half Function Box|Page 2832 > < Electronic Spark Control Half Function Box|Page 2830