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
dodge guy wrote:
It very well could be a fuel pump. If it were weak Pump) and electric pumps are known to work at slower speeds when they get hot) would Cause the issue I’m having. I can’t see it being an oil issue only at hotter temps. I will try the pump first. If not then I’ll do an oil switch. If it were an oil switch issue it should give a code on why it shut down. I never get a code. There is no code to be set for low fuel flow. So if it died due to low fuel it wouldn’t set a code.
OIL gets THINNER as it gets hot. You have not answered my questions but you seem willing to spend money. What Weight Oil is in the Genset? Does it start right back up after it kills? Doug
PS. NOTE that none of these state kill of engine.
Seven Fuel Pump Warning Signs
Engine Sputters at High Speeds. ...
Rising Temperature. ...
Fuel Pressure Gauge. ...
Loss of Power When the Vehicle Is Under Stress. ...
Surging. ...
Decreased Gas Mileage. ...
Engine Will Not Start.
