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International Automotive Technicians Network
Re: What is causing fuel pumps to sieze up when shut down?
Posted to Technical Theory Forum on 2/19/2020

One of my favorite responses is that everything works until it breaks! It's an electric motor that have a lot of influences that cause them to fail. Poor grounds, low voltage supplies. poor fuel quality,etc. There are also the outside/owner influences as well... Login to read more.