What is a fuel line check valve?
What is a fuel line check valve? A fuel pump check valve is a component of a mechanical fuel pump, which is found on many vehicles that were manufactured before electronic injection. The check valve is designed to make the fuel in the vehicle only flow in the correct direction from the fuel pump and to maintain pressure. How does a fuel check valve work? Old car fuel pumps have a check valve located at the pump's inlet and one at the outlet, They are designed to force the fuel to flow in the correct direction. When the check valve...