What? You can't clean the fuel filter! You can only replace it. For one, you'd have to depressurize the fuel system, then disconnect the battery negative...during whole process, make sure not to contaminate the fuel system with dirt and such.
EDIT: there is no such thing as non-replaceble fuel filter lol they filter the fuel, and over time they get clogged...plus, Corolla's fuel filter IS replaceble...talking bout bout worst advices lol
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