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Old 05-26-2014, 01:03 PM   #1
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Angry Help with onan 7000

I'm having gen problems. Gen just quits on its on. Prior to changing fuel filter and air filter it would run 5-10 min and then shut down. I changed fuel filter and air filter prior to leaving rv park this morning. Ran all the way home (2 hour ). Within 5 minutes after I got home it stopped. Would not restart. Tapped on what looked like another filter mounted on the gen set. It started right up. I started the chassis engine to put the slides out and within 5 minutes of turning off the coach engine the gen set shut down. Would not restart, seems like no fuel. What am I missing. How many fuel filters does this unit have? I changed the one connected to the pump. Like I said it ran fine for 2 hours while traveling. Once I stopped whin 5 min it quit. Could this be a pump issue?
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Old 05-26-2014, 02:24 PM   #2
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The first question everyone will ask how much fuel do you have and is it giving a code.
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Old 05-26-2014, 03:23 PM   #3
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Low oil level will also shut the 7000 down. They are very sensitive and need to be kept topped off. Try adding oil. When it seems full you can still add more but it takes it very slow.
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Old 05-26-2014, 03:30 PM   #4
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The thing that looks like another filter is the electric fuel pump. If it is not ticking it is not pumping. Sometimes you can tap them and they will start pumping but it is going bad.
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Old 05-26-2014, 03:33 PM   #5
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it's not the pump I'm referencing. There is another part which looks similar to a filter right next to the carb. the code says uncalled interruption/shutdown.
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Old 05-26-2014, 06:41 PM   #6
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and you have more than 1/4 full tank to make sure you are getting fuel?
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Old 05-26-2014, 07:10 PM   #7
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It has 3/4 tank.
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Old 05-27-2014, 08:34 AM   #8
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Ok it's a gas job not diesel I am not as familiar with the gas ones, sounds like the part you describe is an shutdown solenoid which would make sense if is failing. I would find a parts breakdown and then you can figure out which part does what.
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Old 05-27-2014, 08:49 AM   #9
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How are the batteries level. If it runs no problem with the chassis motor running for a long period and only a few minutes with it the chassis motor could be supplying the needed power. Or at a higher voltage needed for a pump going bad.

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Old 05-27-2014, 09:01 AM   #10
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Can you remove the carburetor bowl and check for debris?
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Old 05-27-2014, 05:22 PM   #11
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I have on '07 Onan 7000 gas generator, here is what I found the hard way. The stock fuel filters are pressed together with metal seams and can develop gas/air leaks overtime. There are two gas filters, one up against the engine, the other closer to the fuel tank (mine is directly under the genset). Onan now recommends eliminating the filter against the engine completely. This is done by purchasing an Onan part made to fit in the filter's place. The gas filter upstream of that one should be replaced and maintained. Perhaps you have overlooked the second gas filter location.
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Old 05-27-2014, 07:38 PM   #12
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Thanks George, I got the same information from Onan today. I picked up the replacement engine filter replacement part today. I will change it and see what happens. I believe this is the culprit. Once the gen set stops it will restart after lightly tapping the filter next to the engine. Hoping by removing it and using the replacement part will solve the problem. Will let you know if this works. Thanks for yours and everyone's help.
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Old 05-28-2014, 08:15 AM   #13
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Quote:
Originally Posted by gruelens View Post
I have on '07 Onan 7000 gas generator, here is what I found the hard way. The stock fuel filters are pressed together with metal seams and can develop gas/air leaks overtime. There are two gas filters, one up against the engine, the other closer to the fuel tank (mine is directly under the genset). Onan now recommends eliminating the filter against the engine completely. This is done by purchasing an Onan part made to fit in the filter's place. The gas filter upstream of that one should be replaced and maintained. Perhaps you have overlooked the second gas filter location.
As always the voice of experience is best.
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Old 07-11-2014, 06:35 PM   #14
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Quote:
Originally Posted by bobbyl View Post
Thanks George, I got the same information from Onan today. I picked up the replacement engine filter replacement part today. I will change it and see what happens. I believe this is the culprit. Once the gen set stops it will restart after lightly tapping the filter next to the engine. Hoping by removing it and using the replacement part will solve the problem. Will let you know if this works. Thanks for yours and everyone's help.
Well, was that the problem? Inquiring minds(or Lost minds) want to know!
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