The fuel pressure check valve is located on the fuel line near the fuel injector assembly just before the fuel rail. It is commonly known as the "Schrader valve" and looks like a small pin or knob protruding from the fuel line.
Purpose
The fuel pressure check valve serves several important purposes in the fuel system of your vehicle. It helps maintain a consistent fuel pressure in the fuel system by preventing the fuel from flowing back into the fuel tank when the fuel pump is not operational. This ensures that there is enough pressure to deliver fuel to the fuel injectors and allows the engine to start smoothly. Additionally, the check valve prevents the fuel from evaporating and helps to prevent vapor bubbles from forming in the fuel line.
