Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2009SILVERADO 2500 2WD V8-6.6L DSL TURBOREPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - POWERTRAIN MANAGEMENTRELAYS AND MODULES - GLOW PLUG SYSTEMGLOW PLUG CONTROL MODULETESTING AND INSPECTION
2009 Chevrolet Silverado 2500 2WD V8-6.6L DSL Turbo
Glow Plug Control Module: Testing and Inspection
2009 Chevrolet Silverado 2500 2WD V8-6.6L DSL TurboSECTION Testing and Inspection
Glow Plug Control Module Programming and Setup
The following service procedures require either a programming or a setup event performed for a complete repair.
GPCM Replacement
If the glow plug controller (GPCM) is replaced, the following procedures must be performed.
Fuel Injector Flow Rate Programming (Service and Repair) for fuel injector flow rate programming
Setup for Component Replacement
The replacement of some components will require a setup procedure for complete repair.
If any of the following components are replaced, the Fuel Injector Flow Rate Programming must be performed. Refer to Fuel Injector Flow Rate Programming (Service and Repair) .
* Fuel injector
* Engine control module (ECM)
* GPCM
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.