The Location of the Fuel Filter in a Express Chevy 3500 The fuel filter on the Chevrolet Express 3500 van is an important part of the fuel system. Fuel or gasoline must be cleaned as it flows through the fuel lines and into the injectors. The Express has two different fuel filters that clean the fuel from debris and foreign particles. Chevy express duramax fuel filter - YouTube Mar 15, 2018Chevrolet duramax express van DIY fuel filter maintenance.
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