Mitsubishi Galant engine failure while driving, possible relay issue on Mitsubishi Galant

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Mitsubishi Galant owners report experiencing engine failure while driving, often linked to various relay issues. These owners note that checking for stored trouble codes can provide insights into the specific systems causing the engine to shut down. Additionally, a malfunctioning A/T Control Relay may indicate a failing Transmission Control Module (TCM), leading to engine problems. Issues with the fuel pump relay are also common, as a faulty relay can prevent the fuel pump from operating, resulting in engine shutdown. Furthermore, some owners have identified a faulty ignition switch as a potential cause, which, if ignored, could lead to more severe consequences, including complete engine failure or fire hazards. Lastly, blinking dashboard lights might suggest problems with the ignition relay, where corrosion can create intermittent connections, causing the engine to turn off and on unexpectedly. It is crucial for owners experiencing these symptoms to diagnose and address these issues promptly to ensure vehicle safety and reliability.

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