Generator shutting down while in motion

[Charger1204]

Update...I filled up the RV and started the genny to see if it would shut down on the way home, it did not shut off with the A/C off and no load applied. On to the next test...

 

[Kirk]

How much fuel was in your tank at the time that the generator shut down? It is very common for the generator fuel line to be placed such that it stops when the tank level falls to 1/4 or less. That is done to prevent the generator from emptying the tank so that you are unable to drive to a fuel station.

 

[Rene T]

How much fuel was in your tank at the time that the generator shut down? It is very common for the generator fuel line to be placed such that it stops when the tank level falls to 1/4 or less. That is done to prevent the generator from emptying the tank so that you are unable to drive to a fuel station.

Kirk, See post #2.

 

[TheBar]

Your emissions systems may be causing negative pressure in the fuel tank. The generator's fuel pump may be starving for gas.

 

[Kirk]

Full of gas

On to the next test...

Any news yet?

It just crossed my mind that I know of a case similar to this one that was caused by too much oil in the generator. If that happens the oil can foam and trigger the low oil sensor to shut down.

 

[Charger1204]

Any news yet?

It just crossed my mind that I know of a case similar to this one that was caused by too much oil in the generator. If that happens the oil can foam and trigger the low oil sensor to shut down.

I checked the oil and it is in the middle of the dip stick, not to high, not to low. I know that if the gen has a drop in voltage, or a perceived drop in voltage, they will cut out, that's why it was doing it before, the loose ground was causing the issue then, that would explain why it didn't shut down when there was no load after I filled the fuel tank, or that's what I'm leaning towards anyway!

 

[Kirk]

Have you run it under load when not traveling? Is it possible that shutting down only on the road is a coincidence? As a career service technician, I can tell you that we all hate intermittent failures. You never know for sure that it is fixed.

 

[Charger1204]

Have you run it under load when not traveling? Is it possible that shutting down only on the road is a coincidence? As a career service technician, I can tell you that we all hate intermittent failures. You never know for sure that it is fixed.

Yes!, it will literally run as long as you let it while sitting still, I run it every month for at least 45 minutes to an hour with a load.

 

[penman39]

My generator will run all day long sitting still but a few moments after driving down the road it shuts off, I'm leaning towards a ground issue, any other possibilities? Thanks for any help or suggestions.
Brad
2010 Winnebago Vista 26p *****I HAVE A ONAN 4000 GENERATOR**** sorry I didn't mention that to begin with!

Is it leaving a code? You have to pull off the cover and check the light on the start stop local switch. Check the owners manual for the procedure to read the code. Let us know what you find out.

 

[TheBar]

Your emissions systems may be causing negative pressure in the fuel tank. The generator's fuel pump may be starving for gas.

I would say loosen the gas cap just a little to let air in then drive it but that would be dangerous so I'm not going to say it

 

[Charger1204]

I would say loosen the gas cap just a little to let air in then drive it but that would be dangerous so I'm not going to say it

Funny you should mention the gas cap...I just bought a locking gas cap the other day, I'll have to see what happens when I take it out!