Mitsubishi Diamante fuel smell in cabin, rapid power drain, and power steering failure with suspected engine issues and ticking noise on Mitsubishi Diamante

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

Problem overview

Some Mitsubishi Diamante owners report experiencing a fuel smell in the cabin, which may indicate a serious issue such as a fuel leak, potentially caused by a bad gas cap, evaporative emissions system leaks, or overfilling the tank. Additionally, some owners have reported rapid power drain, which could stem from problems with the battery, alternator, or electrical system. Power steering failure is another concern, with symptoms including a loss of power assist, unusual noises, or the vehicle pulling to one side, prompting the need for a visual inspection of the power steering system for leaks or damage. Furthermore, suspected engine issues should be addressed promptly, as they may involve fuel delivery, ignition, or mechanical components. Lastly, a ticking noise from the engine may signal low oil levels, worn components, or valvetrain problems, necessitating a mechanic's inspection to determine the exact cause. It is crucial for owners to seek professional assistance to diagnose and resolve these issues effectively, as ignoring these symptoms could lead to further damage and safety hazards.

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