Mitsubishi Galant Ignition Control Module Guide: 1986-1994
If your 1986-1994 Galant is stalling or won't start, the ignition control module could be the culprit.
- A bad ignition module on a 1986-94 Galant typically causes a no-start or sudden stalling issue.
- The module is located inside the distributor and is a job a DIYer can handle in about an hour.
- OEM parts are likely unavailable; a new aftermarket module from a brand like Standard Ignition is the standard repair.
- No recalls or TSBs have been issued for this specific part, so failure is due to age.
Is Your Galant's Ignition Module Failing?
The ignition control module (ICM) is a small electronic part that can cause big problems when it fails. Because it deals with high energy and lives in a hot engine bay, the internal circuits can break down over time from heat and vibration. A failing module often starts with intermittent issues that get worse. One common failure mode is for the module to work when cold but fail once the engine warms up, causing the car to stall and refuse to restart until it cools down.
Symptoms of a Bad Ignition Module on a 1986-1994 Galant
A bad ICM can mimic other ignition or fuel problems, so it's important to recognize the specific signs. Look out for:
- No-Start Condition: The engine cranks over but never starts because there is no spark. This is the most serious symptom.
- Sudden Stalling: The engine dies for no reason while driving, often when it's hot. It may restart after cooling for 30 minutes or more.
- Engine Misfires or Stuttering: The engine may run rough, hesitate during acceleration, or feel down on power.
- Rough Idle: The engine idles unevenly.
Pro Tip: A complete lack of spark is a strong clue pointing to the ignition system. While other parts like the ignition coil or distributor sensors can cause this, the ICM is a frequent culprit on older vehicles. A mechanic can test the module to confirm it's the problem before you buy a new one.
Choosing the Right Aftermarket Module
For a vehicle as old as the 1986-1994 Galant, finding a new original equipment (OEM) ignition module from Mitsubishi is nearly impossible as they have been discontinued. This makes aftermarket parts the only realistic option. Standard Ignition is a well-known brand that manufactures these modules.
Aftermarket electronic parts can sometimes be a gamble, with quality varying between brands. However, Standard Motor Products is a long-established company that often serves as a primary replacement option when OEM is unavailable. They state that their modules are designed to handle the tough environment of the engine bay with features like high-temperature polymer housings. For this specific part, going with a reputable aftermarket brand is a practical choice.
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket (Standard Ignition) | $111.12 - $316.22 |
| New OEM | Not readily available |
| Used OEM | Varies; availability is limited |
| Shop Labor | $90 - $150 |
Known Issues, Recalls, and Service Bulletins
Searches of the National Highway Traffic Safety Administration (NHTSA) database show no specific recalls or technical service bulletins (TSBs) for the ignition control module on the 1986-1994 Mitsubishi Galant. Any issues you experience are likely due to the age and normal wear of the electronic components.
Frequently Asked Questions (FAQ)
Where is the ignition control module located on my Galant?
On most 1986-1994 Mitsubishi Galants, the ignition control module is located inside the distributor. You will need to remove the distributor cap to see and access it.
Can I replace the ignition module myself?
Yes, this is a DIY-friendly job for someone with basic mechanical skills and tools. The process involves removing the distributor cap, unplugging the old module, unbolting it, and installing the new one. It's important to disconnect the battery first and handle the components carefully.
Do I need to apply any special grease to the new module?
Some ignition modules require a special heat-dissipating (dielectric) grease applied to the metal backplate to help transfer heat away from the module. Always check the instructions that come with your new part to see if this is required.
Could something else cause a no-spark problem?
Yes. A no-spark condition can also be caused by a bad ignition coil, a failed crankshaft or camshaft position sensor (if equipped), a bad distributor pickup coil, or even a faulty ECU or main relay. If a new module doesn't fix the issue, these other components should be tested.
Technical Specifications
OEM Part Numbers: 8574-24-910 940038560 B312-4Q03A 96056317 96067829 MD618293 J153
The ignition control module for this vehicle is typically located inside the distributor and uses a multi-pin connector to receive signals and trigger the ignition coil.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Mitsubishi Galant: