I have a new to me 2014 Winnie with a 4k Onan gas generator. The coach is in excellent condition, super clean and the generator only had 37 hours on it when I purchased it.
I changed the oil, air filter, spark plug and fuel filter.
It would never run more than 30-35 minutes then quit. While running it ran well and this was during the FL summer.
I started to do searches for the condition and found one solution that I thought had fixed it, particularly since I had just changed the oil. That was the oil overfill condition. So I drained a bit out to the point of the bottom of the add mark.
My next two trips were only an hour drive but the generator ran fine both ways.
I'm currently on a 2 stop trip.
On Sunday we traveled 4 hours and it quit about 2 and half hours into the trip. I got it restarted after 15-20 minutes and then it quit again in about 15 minutes.
Today we traveled less than an hour. It ran until just before our arrival. At the ranger station it started to surge and then quit.
This is so frustrating and become even more so once you start to search these conditions. It seems the possibility of fixes are endless. I read where one guy spent $4k at multiple shops until he got his genset figured out.
Anyone have any ideas on where to start on such a low hour genset. It will start fine and runs great then just quit and now the surging that started today. Thanks!