Generator vapor locking

dodge guy wrote:

Bruce Brown wrote:

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.

It's your money so do what you want.

If it were my money I'd start with the oil switch as Doug suggested. Pretty cheap and easy to try, and 100% makes sense as to what is happening, as he explained.

With that said, we once owned a Ford powered MH that would die when it got hot - it was the fuel pump. The big difference is that one wouldn't immediately re-start and run well. Sometimes it would re-start and limp, sometimes it wouldn't re-start until it had cooled.

You guys are aware this is the Generator engine right? The generator runs In completely different parameters than the vehicle engine.

I've very aware. My note on the MH was yes, a hot fuel pump may indeed be an issue. With that said, it made no difference if it was rough or smooth, when it died it died. It was 100% a temperature issue and 0% a terrain issue.

In your case the fact it only does it only when you hit a bump or shake it leads me to believe the switch is more likely to be the issue. Keep in mind heat effects electronics too.

But like I said, it's your money. If you want to start with a $45.00 pump first it might save you from buying a $4.00 switch later. Me - I'd rather start with the $4.00 switch in hopes I'd be saving $45.00 later, but thats just me.

I'm sure you'll get it figured out and let us know - and we'll all appreciate your information!