What Can Kill a Fuel Pump

The most common cause of fuel pump failure is frequently running the tank low on fuel, which causes the motor to overheat. The second most common cause is fuel contamination, usually dirt and rust particles that clog the fuel strainer and prevent the pump from drawing enough fuel under high engine load.

What can destroy a fuel pump?

Insufficient flow limits cooling and lubrication of the pump. A leading cause of fuel pump failure is running the fuel tank low. This is particularly critical on late model vehicles without a fuel pressure return system. Running such a vehicle out of fuel once can permanently damage the fuel pump.

How do you mess up a fuel pump?

In rare cases the introduction of water in the tank can potentially damage the pump. If you have a diesel engine , pouring gasoline in the tank by mistake can kill a fuel pump in no time. Pouring diesel into a gasoline engine on the other hand doesn’t cause much damage other than the vehicle will eventually stall .