Toyota Tacoma gas line leak issue on 4-year-old truck on Toyota Tacoma

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

Problem overview

Some Toyota Tacoma owners report experiencing issues related to gas line leaks, such as large evaporative emissions leaks indicated by trouble code P0455, which can result in a noticeable fuel smell without immediately affecting driveability. Others have encountered difficulties filling the tank due to kinks or obstructions in the fuel filler line, leading to frequent pump nozzle clicks during refueling. Additionally, some owners are aware of potential head gasket failures in early second-generation Tacomas with the 4.0-liter V6 engine, which may impact performance but are not directly linked to gas line leaks. Proper diagnosis is crucial, and owners recommend inspecting the top of the tank with a mirror and performing a smoke test to locate leaks accurately. Furthermore, some individuals have reported fuel line leaks after pump replacements, suggesting that seeking advice from others who have faced similar issues may be beneficial for determining appropriate solutions.

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