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Old 06-24-2012, 12:47 AM   #1
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Generator is not sucking fuel

Previously, when my fuel runs below 1/4 tank, I need to fill up the fuel tank to get the generator working again. I'm guessing that the air in the fuel line to the generator needs to be bled.

However, today, I filled up my fuel tank but couldn't get the generator started. I know that fuel is the problem because I tried feeding the generator with a hose dipped in a fuel can and can run the generator. At the generator, I tried putting a priming bulb on the fuel line from the coach's fuel tank but can't get it to suck fuel.

There are some checks on the fuel line from the coach's fuel tank so I'm guessing that air is leaking in preventing sufficient vacuum from being created.

Any ideas or similar experience? Thanks in advance.

edit: 1996 36-foot Country Coach Intrigue.
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Old 06-24-2012, 01:08 AM   #2
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What generator do you have. You said the fuel line has some "checks"...did you mean cracks? If cracks...replace the fuel line for sure. Gotta eliminate the obvious.

My Workhorse P32 Hurricane also only supplies fuel to the 4000 Onan gen if fuel tank is more than 1/4 full. It actually stops fuel before the 1/4 mark. Air in the line will be pushed out the carb if the fuel pump is creating vacume, no need to bleed the air out. Your hose in a gas can is before the fuel filter? Filters not clogged?
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Old 06-24-2012, 01:44 AM   #3
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"Cracks" is probably a better word than "checks". I cannot reach the fuel line as it approaches the fuel tank without having the RV on a lift as a shop could. I suppose I can replace and splice the line as far as I can reach.

The fuel can test I did was before the fuel filter.
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Old 06-26-2012, 01:49 AM   #4
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Since the gen runs with the gas can test I don't see any other possible fix except replacing the fuel line. I found that I am able to crawl into a crouching possition on my knees and reach to within a foot of the fuel tank pickup tube. Perhaps someone small could reach even farther. An rv shop would probably just drain and drop the tank....alot of labor for a lot of money. The first time the low fuel shut off happened to me I did all the tests you did and more before I remembered / realized the real problem. Gotta be the cracked line. You could smear vasoline on a rag and run it along the line where you can reach and you may find the air /crack. Good luck and be sure to give a follow up....Gary
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Old 06-27-2012, 09:24 PM   #5
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Had the same problem with my '97 Beaver. Replaced the fuel line from tank to fuel pump.

Jim
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Old 07-16-2012, 02:14 PM   #6
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I have a 2004 Allure and had a similar problem, the fuel line to the generator had crack and caused and air leak. The line was replaced difficult to get to, but works fine now.
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Old 07-17-2012, 11:13 AM   #7
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Since most CC rigs will not feed the generator below 1/4 tank of fuel (to assure you can start the coach engine), you might have air in the fuel system?

Try bleeding an injector while cranking the engine until you get fuel. Then try to start the engine.
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