A failing fuel pump will not create enough pressure in the fuel system, potentially resulting in a loss of engine power or a “no start” condition. You may also have a lean running condition that can set a diagnostic trouble code and turn on the Check Engine Light.
Fuel pumps require replacement if they leak or begin making too much noise, which is a sign of malfunction.
New fuel pumps
Common Misdiagnoses
A clogged fuel filter or problems with the electrical system powering the fuel pump can result in symptoms similar to a failed fuel pump. Have the shop verify that the pump is the problem before replacing.
Fuel pump diagram
Best Practices
The fuel filter should always be replaced when replacing the fuel pump.
