Ignition Control Module ICM For Chevy Pontiac Olds Buick GMC Cadillac-LX339

Ignition Control Module ICM for Chevy Pontiac Olds Buick GMC Cadillac - LX339

This ignition control module, referenced as LX339, replaces the ignition control module on many for GM vehicles and restores reliable spark delivery so the engine starts and runs as it should.

Overview

This ignition control module is a replacement ICM referenced as LX339 for a range of for GM vehicles. The ignition control module controls the ignition coil firing signal so the engine gets consistent spark at the right moment. It is aimed at owners chasing a no-start, misfire, or stalling issue traced to a failed or intermittent ICM.

Built For Performance

• Replacement ignition control module matched to the LX339 reference
• Handles coil trigger signals for consistent spark timing
• Sealed body suited to the heat and vibration of the engine bay
• Plug-in connector layout matching the factory module footprint
• Listed for multiple for GM makes for broad vehicle coverage

Fits These Machines

• for Chevy
• for Pontiac
• for Oldsmobile
• for Buick
• for GMC
• for Cadillac

On-The-Job Use

• Fixing a crank-no-start condition traced to the ignition module
• Clearing up misfires and rough running caused by weak spark control
• Replacing an intermittent module that cuts out when hot
• Servicing distributor-based ignition systems on older for GM vehicles

Specs At A Glance

Good To Know

Q: How do I know if my ignition module is bad? A: A failed module often shows a crank-no-start or a misfire that worsens when the engine is hot. Test spark and the module signal before replacing parts.

Q: Should I apply heat paste when installing it? A: Yes, fresh dielectric heat paste under the module helps transfer heat to the distributor base. Skipping it can shorten the life of the new ignition control module.

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