How Much Fuel Should Remain in the Tank When Replacing the Fuel Pump?

1 Answers
StBrody
07/30/25 6:51am
4S shops recommend keeping about 1/3 of fuel remaining. Below is a partial introduction about the fuel pump: 1. Function: The main function of the fuel pump is to supply fuel to the engine. The fuel pump delivers high-pressure fuel to the injection pipe, ensuring a continuous supply of fuel to the injectors. 2. Composition: The fuel pump consists of an electric motor, a pressure limiter, and a check valve. The electric motor actually operates within the fuel inside the pump housing. There's no need to worry, as there are no ignition sources inside the housing. The fuel lubricates and cools the fuel motor. A check valve is installed at the fuel outlet, and the pressure limiter is located on the pressure side of the pump housing, featuring a passage leading to the fuel inlet.
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