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Old 06-18-2016, 05:09 PM   #1
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Onan 5.5KW gas HGJAB shutting down

I purchased last year a 2008 Fleetwood Pace arrow 38P it has an Onan 5.5KW gas generator Model5.5HGJAB. The problem is that it will not run for an extended period with out shutting down. I had the dealership look into it I was told oil change and sparkplug but problem still there conditions 90+ degrees oil level sat air filter slightly dirty. The gen resides behind the driver side tires both the engine exhaust and gen exhaust are in close proximity to the intake. The intake screen looks dirty but not clogged.
The problem Is while on the road driving. I will have it serviced but courious. I read the trouble shooting guide it referenced error codes looking at the gen locally no blinking lights but I am hooked upto shore power now not sure if I can check now or not?

Thanks gene
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Old 06-18-2016, 05:12 PM   #2
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Common Problem . . . Fuel pump is bad and needs to be replaced
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Old 06-18-2016, 05:15 PM   #3
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Hi, just went through the same thing on my Onan 5500. The fuel pump replacement was the fix. When the fuel pump got hot it failed to continue pumping. Mine was diagnosed and fixed by a certified Cummins Service Center. Been running like a champ ever since, even in 110+ temps here in AZ

Good luck
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Old 07-09-2016, 09:41 AM   #4
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The problem was the fuel pump, I replaced it myself easy job and runs like a champ
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