Explore our range of Duramax glow plug control modules (GPCM) to manage and restore your vehicle’s glow plug functionality. The glow plug control module is an important part in your engine's starting system that controls the heating elements used to assist with cold weather. When it fails, you may experience hard starts, rough idling, and poor engine performance. Find the right GPCM for your vehicle now!
Frequently Asked Questions (FAQs)
When your GPCM starts to fail, look for common signs like difficulty starting the engine (especially in cold weather), a Check Engine Light, the "Wait to Start" light staying on or flashing.
Yes. Each GPCM ships pre-programmed for your specific year and engine type to simplify installation.
Yes! Please refer to our warranty policy for specific details on coverage.