Glow Plug Control Module FOR 2004-05 Chevrolet GMC 2500HD 3500HD DURAMAX 6.6 LLY

Glow Plug Control Module for 2004-05 Chevrolet GMC 2500HD 3500HD Duramax 6.6 LLY

This glow plug control module for 2004-05 Chevrolet and GMC 2500HD and 3500HD trucks with the Duramax 6.6 LLY diesel regulates the current sent to the glow plugs so the engine starts cleanly in cold weather. It replaces the factory control module that cycles glow plug operation on the LLY Duramax.

Overview

The glow plug control module for 2004-05 Chevrolet GMC 2500HD 3500HD Duramax 6.6 LLY manages the current and timing delivered to the glow plugs during cold starts. When the original module fails, the engine can crank long, run rough when cold or set glow plug codes, and this module restores proper glow plug control. It is aimed at owners and diesel techs servicing 2004-2005 Duramax 6.6 LLY equipped trucks.

Built For Performance

• Controls current and on-time to the glow plugs for reliable cold starts
• Direct replacement for the factory glow plug control module on LLY Duramax applications
• Sealed housing suited to the engine bay environment
• Factory-style connectors for a plug-in installation
• Designed for 2004-2005 6.6 LLY Duramax diesel engines

Fits These Machines

• for Chevrolet Silverado 2500HD 2004-2005 6.6 LLY Duramax
• for Chevrolet Silverado 3500HD 2004-2005 6.6 LLY Duramax
• for GMC Sierra 2500HD 2004-2005 6.6 LLY Duramax
• for GMC Sierra 3500HD 2004-2005 6.6 LLY Duramax

On-The-Job Use

• Replacing a failed module that causes hard cold starts on LLY Duramax trucks
• Clearing glow plug related trouble codes on 2004-2005 2500HD and 3500HD diesels
• Restoring cold-weather starting performance for work trucks and daily drivers
• Routine service on high-mileage Duramax 6.6 LLY engines

Specs At A Glance

Good To Know

Q: How do I know if my glow plug control module has failed? A: Common signs include long cranking, rough running when cold and glow plug related trouble codes, though the glow plugs and wiring should be tested as well before replacing the module.

Q: Does this fit 2006 and newer Duramax trucks? A: This module is listed for 2004-2005 6.6 LLY Duramax applications, so confirm your engine code and model year before ordering.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.