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04-03-2021, 02:30 PM
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#1
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Senior Member
Brand: Thor Motor Coach
State: Nevada
Posts: 128
THOR #20052
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Onan gas generator
Shuts off after about an hour or so of running?
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04-03-2021, 03:12 PM
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#2
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Senior Member
Brand: Thor Motor Coach
Model: A.C.E. 27.2
State: Indiana
Posts: 1,886
THOR #14698
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Start with simplest first. How much fuel in the motorhome's gas tank? does the genny have unrestricted air flow, not overheating is it?
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2018 ACE 27.2
Toad 2019 Jeep Cherokee Trailhawk
Roadmaster Falcon All Terrain Towbar
Roadmaster Invisibrake
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04-03-2021, 03:20 PM
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#3
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Senior Member
Brand: Thor Motor Coach
Model: Four Winds 26B
State: Ohio
Posts: 490
THOR #20900
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Is the oil low?
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2021 Thor Four Winds 26B on Chevy 4500
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04-03-2021, 03:25 PM
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#4
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Site Team
Brand: Entegra
Model: Accolade 37TS
State: South Dakota
Posts: 8,782
THOR #1469
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AGS enabled and runtime set to one hour?
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04-03-2021, 09:13 PM
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#5
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Senior Member
Brand: Thor Motor Coach
State: Nevada
Posts: 128
THOR #20052
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Don't know. How can you tell
Quote:
Originally Posted by EA37TS
AGS enabled and runtime set to one hour?
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04-03-2021, 09:15 PM
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#6
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Senior Member
Brand: Thor Motor Coach
State: Nevada
Posts: 128
THOR #20052
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I have a full tank of gas. As far as overheating it was 60° outside it ran for about 2 hours.
Quote:
Originally Posted by MJC62
Start with simplest first. How much fuel in the motorhome's gas tank? does the genny have unrestricted air flow, not overheating is it?
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04-03-2021, 09:16 PM
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#7
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Senior Member
Brand: Thor Motor Coach
State: Nevada
Posts: 128
THOR #20052
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I will check [emoji818]thank you
Quote:
Originally Posted by atreis
Is the oil low?
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04-03-2021, 10:37 PM
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#8
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Senior Member
Brand: Thor Motor Coach
State: Nevada
Posts: 128
THOR #20052
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Good on oil
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04-03-2021, 10:56 PM
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#9
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Senior Member
Brand: Still Looking
Model: Sunstar 29VE Winnebago
State: Texas
Posts: 5,651
THOR #13058
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Quote:
Originally Posted by magicofmassage@gmail.com
Don't know. How can you tell
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We know it is Onan, but....
How old is it?
When did this start?
Do you have a controller (there are a few settings that could be impacting shutoff if accidentally changed?
Has all of this been noted with the same gas?
If they can say, Google is your best friend, I say SeaFoam is the best Generator Mechanic 
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2019 Sunstar 29ve; Toad Lincoln Navigator; RVi Brake 3 & Command Center; Roadmaster Nighthawk Tow bar & Baseplate; Sumo Springs; Safe T Plus; Onan EC-30 AGS; Vmax 250ah AGM; T-Mobile Internet; H/W Heater / Chassis Disconnect Switches; Southwire Surge Guard 44270 & 34951 w/Monitor 40301; Jet Flo Macerator; Alpine SPE500 Speakers; Visio M21D-H8R
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04-03-2021, 11:17 PM
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#10
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Senior Member
Brand: Thor Motor Coach
State: Nevada
Posts: 128
THOR #20052
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Just started. Boondocking. Where is controler?
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04-04-2021, 01:15 PM
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#11
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Junior Member
Brand: Thor Motor Coach
State: Georgia
Posts: 25
THOR #21916
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Quote:
Originally Posted by magicofmassage@gmail.com
Shuts off after about an hour or so of running?
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Ours was doing that same thing. Turned out to be the fuel pump.
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2013 Thor Hurricane 34E
2005 Jeep Wrangler TJ /LJ
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04-04-2021, 01:39 PM
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#12
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Senior Member
Brand: Thor Motor Coach
State: Nevada
Posts: 128
THOR #20052
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It ran for about an hour? Wow when I get home I'll check it out. Thank you
Quote:
Originally Posted by JimmyZ
Ours was doing that same thing. Turned out to be the fuel pump.
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04-06-2021, 04:10 AM
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#13
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Senior Member
Brand: Thor Motor Coach
Model: Vegas 25.2
State: Arkansas
Posts: 277
THOR #4986
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Yup, fuel pump. Mine was doing same thing. Replaced FP good to go [emoji106]
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Jerry B.
USAF (Retired E-8) Vietnam Vet
2017 Vegas 25.2
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04-06-2021, 12:02 PM
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#14
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Senior Member
Brand: Thor Motor Coach
State: Nevada
Posts: 128
THOR #20052
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Thank you! Will be checking mine today
Quote:
Originally Posted by Jerry B.
Yup, fuel pump. Mine was doing same thing. Replaced FP good to go [emoji106]
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04-06-2021, 02:47 PM
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#15
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Senior Member
Brand: Thor Motor Coach
Model: Miramar 35.3
State: Pennsylvania
Posts: 211
THOR #20808
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Agree on the fuel pump. They last a couple of years and can overheat when there isn't really an heat. Replace the fuel strainer also that feeds it, what can happen is that dirt accumulates in the strainer and causes the pump to operate with lower fuel flow and the fuel is used as a coolant in the pump. So less flow, more heat, overheat.
After it cools down will work for bit.
Had this happen x2 on one.... over 11 years two FP and four strainers.
Good luck.
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04-06-2021, 03:43 PM
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#16
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Senior Member
Brand: Thor Motor Coach
State: Nevada
Posts: 128
THOR #20052
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Thank you very much [emoji4]
Quote:
Originally Posted by pneumatics
Agree on the fuel pump. They last a couple of years and can overheat when there isn't really an heat. Replace the fuel strainer also that feeds it, what can happen is that dirt accumulates in the strainer and causes the pump to operate with lower fuel flow and the fuel is used as a coolant in the pump. So less flow, more heat, overheat.
After it cools down will work for bit.
Had this happen x2 on one.... over 11 years two FP and four strainers.
Good luck.
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04-06-2021, 04:13 PM
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#17
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Senior Member
Brand: Thor Motor Coach
Model: Vegas 25.6
State: New Mexico
Posts: 5,131
THOR #20220
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good to know thanks.. where is the fuel pump and strainer on the onan 4000?
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LAS CRUCES 2020 Thor Vegas 25.6
Lora & George. Golden Retriever & Multi-Gen Australian labradoodle & new ALD in March. Happy Campers!! E Biking, Hiking, Tennis, Scuba,Fishing,Cross Country Skiing, Snowshoeing. Retired H.S. Principal, Sr. IT Engineer, Life & Health Insurance Agent
"Today is a Gift and Why it is called the Present"
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04-06-2021, 08:59 PM
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#18
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Senior Member
Brand: Thor Motor Coach
State: Nevada
Posts: 128
THOR #20052
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Ok, just disconnected the fuel line to carburetor flipped the start switch and had a steady flow of fuel help!
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04-06-2021, 09:58 PM
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#19
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Junior Member
Brand: Thor Motor Coach
State: Georgia
Posts: 25
THOR #21916
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Quote:
Originally Posted by magicofmassage@gmail.com
Ok, just disconnected the fuel line to carburetor flipped the start switch and had a steady flow of fuel help!
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It's an intermittent problem. It's just now going to stop when you want it to.
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2013 Thor Hurricane 34E
2005 Jeep Wrangler TJ /LJ
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04-06-2021, 10:35 PM
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#20
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Senior Member
Brand: Thor Motor Coach
State: Nevada
Posts: 128
THOR #20052
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Okay [emoji108]
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