Sierra 3500 4WD V8-6.6L DSL Turbo (2007)
Glow Plug Control Module: Service and Repair
Glow Plug Control Module Replacement
Removal Procedure
1. Disconnect the negative battery cable.
2. Disconnect the positive battery cable (1) from the glow plug control module.
3. Disconnect the engine wiring harness electrical connector (2) from the glow plug control module.
4. Remove the glow plug control module bolts and module.
