Generator vapor locking
So I've been trying to track down this issue I have been having with my 5500 Cummings/Onan generator. It will die out intermittently. I finally tracked it down to it dies when you hit a very rough hig...
Forum Discussion
After the generator stops after running and is hot, press and hold the generator primer button, if you don't hear the normal pulsing sound of the electric fuel pump, it has likely seized. After it cools, try holding the primer button again, if you hear it, the generator will likely start and run again till the pump gets hot then seizes again. Replace the pump. The Amazon replacement pump worked well for me. With the generator running, the electric fuel pump should run continuously, but you just can't hear it over the generator's noise.
