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How to Check the Fuel Lines and Fuel Pump on a Volkswagen Passat

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Two things make an internal combustion engine function: fuel and fire. If the engine in a Passat isn’t working the way it should be, then it’s because there’s a restriction on one or the other. If it’s fuel, then the two most common problems are a clogged fuel filter and a malfunctioning fuel pump. Check the filter for clogs and then check the pump and fuel lines.

Tools Used: Tools, Floor jack, Jack stands, Replacement parts, Clean bucket, Adjustable wrench

Check the Fuel Lines and Fuel Pump

Raise the rear end of the Passat with a floor jack, and support it by the frame with jack stands. Slide under the car, and locate the fuel tank, which is centered under the backseat. The fuel pump is in front of the tank on the passenger side, and the fuel lines run from the pump along the bottom of the car to the engine compartment.