How does a fuel pump work on a John Deere tractor?
How does a fuel pump work on a John Deere tractor? Hunker may earn compensation through affiliate links in this story. A fuel pump on a John Deere tractor has a sensor that helps regulate fuel flow into the carburetor. If the sensor is not working properly, the pump will not give the engine enough fuel to run, which causes the engine to backfire and randomly shut off. Why does my John Deere 345 only crank? I have a john deere 345 that ran fine a week a go but now will only crank. It has good spark but doesnt...