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The check engine code P0455 for a 2002 Dodge Ram 1500 indicates a large evaporative emission system leak. This typically suggests that there is a significant leak in the EVAP system, which could be caused by a loose or damaged gas cap, a cracked or broken EVAP hose, or issues with the EVAP canister. It's essential to address this code promptly, as it can affect fuel efficiency and emissions. A thorough inspection of the EVAP system components is recommended to identify and repair the source of the leak.

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3mo ago

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