2006 RT Onan 2.8 cutting out
Went to give the onan it's monthly exercise today. It ran great for about 20 minutes with the AC on then surged a little and died. Had to wait 5-10 minutes before it would start again and then same t...
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We purchased a previously owned 05/06 Roadtrek 190 Popular a little over 4 years ago. Shortly after getting it We drove it to Florida and found that on a hot day after driving around that if we stopped in a parking lot and started the generator and then the air conditioner after a few minutes the generator would begin surging and then fail and would not restart. I took it back to the dealer where I bought it and he attempted to fix it by replacing the carburetor which did not help. This proved to be an intermittent problem which seemed to be related to hot weather but if I started it in our driveway on a hot day for exercise it would run the AC with out difficulty. On the other hand if we were on the road and stopped for gas and lunch at a Flying J we could not depend on running the generator and AC.
Then I attended the Roadtrek International Mid-Winter Rally in Orlando Florida, the Onan seminar was given by Mike Potter the owner of Noah's Ark of Cocoa Florida.On a later trip I took my Roadtrek to his shop.
First I was impressed when I called for an appointment and while describing my problem, Scott the service manager told me of some common symptoms which sounded very like mine. He said it was a well known problem that the Onan 2.8 could have problems which are caused by the electric fuel pump the Onan 2.8 has and which can overheat and stop until it cools.
When I went to the shop the technician started the generator and the AC and we took the van for a ride and luckily even though it was only 85 degrees out after about 10 minutes the generator failed and would not restart. On returning to the shop he found the generator would start if directly supplied fuel useing a spray can into the carburetor and so was convinced the fuel pump was the problem. On removing the old pump he noted the dark color of the pump and some spots that appeared black or charred and he commented that it looked as it had been overheated and showed me the new pump which was bright.
This may not be your problem but my Onan 2.8 has run fine every since the fuel pump was replaced.
Bill Dillinger
190 Popular 05/06
Rockville MD
Then I attended the Roadtrek International Mid-Winter Rally in Orlando Florida, the Onan seminar was given by Mike Potter the owner of Noah's Ark of Cocoa Florida.On a later trip I took my Roadtrek to his shop.
First I was impressed when I called for an appointment and while describing my problem, Scott the service manager told me of some common symptoms which sounded very like mine. He said it was a well known problem that the Onan 2.8 could have problems which are caused by the electric fuel pump the Onan 2.8 has and which can overheat and stop until it cools.
When I went to the shop the technician started the generator and the AC and we took the van for a ride and luckily even though it was only 85 degrees out after about 10 minutes the generator failed and would not restart. On returning to the shop he found the generator would start if directly supplied fuel useing a spray can into the carburetor and so was convinced the fuel pump was the problem. On removing the old pump he noted the dark color of the pump and some spots that appeared black or charred and he commented that it looked as it had been overheated and showed me the new pump which was bright.
This may not be your problem but my Onan 2.8 has run fine every since the fuel pump was replaced.
Bill Dillinger
190 Popular 05/06
Rockville MD
