What keeps a fuel pump cool?
What keeps a fuel pump cool? Fuel pumps are mostly cooled by the fuel running through them. As far as fuel pumps running without the engine running as when the car runs out of gas, it doesn't happen. Safety laws require that when the engine quits running so does the fuel pump. How is the electric fuel pump cooled? When the ignition is activated, the (PCM) energizes a relay that supplies voltage to all electric fuel pumps. Generally you will find that electrical fuel pumps are located in the fuel tank in order to use the fuel in the tank...