Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.
The two most common causes are running the pump low on fuel and contaminated fuel. The fuel in the tank cools the pump and adds head pressure to lessen the load. Since fuel in the tank flows through the pump assembly, contaminated fuel will quickly damage the pump motor. For more information, please see our Detailed Topic, What Causes Fuel Pumps To Fail.
