Toyota Sienna fuel smell inside cabin leading to high petrol expenses on Toyota Sienna

Some Toyota Sienna owners report experiencing a fuel smell inside the cabin, which may indicate a fuel leak that poses safety hazards and leads to higher petrol expenses. Additionally, issues with the EVAP system can contribute to fuel odors and may result in engine performance problems or failed emissions tests. A faulty gas cap is another common cause of gasoline smells inside the vehicle. Moreover, various fuel system issues, such as leaky fuel injectors or damaged fuel lines, can allow fuel vapors to enter the cabin. Some owners also report strong smells due to a failing charcoal canister or a bad pressure regulator, which could signal severe issues like a fuel leak. Furthermore, leaks from the fuel injection line or tank vent hose can produce gas odors, especially when not parked at a gas station. Improper sealing of the gas cap can also allow fumes to permeate the cabin, affecting safety and fuel efficiency. It is crucial for owners to have their Toyota Sienna inspected by a qualified mechanic to identify and resolve these issues promptly, as neglecting the fuel smell can lead to safety risks and increased fuel consumption.