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03-13-2018, 08:48 PM
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#1
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Junior Member
Join Date: Mar 2018
Posts: 4
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Fuel Tank
Hi There
We live in New Zealand and brought in a 1994 Rexhall Airex motorhome
The fuel gauge has started to play up (drops to E when the key is turned on)
The petrol tank sounds empty when you tap it yet I cannot get any more fuel in without blowback.
Is the fuel tank double skinned?
Any ideas what could be wrong.
Cheers Jim
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03-13-2018, 09:03 PM
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#2
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Senior Member
Tiffin Owners Club
Join Date: Jul 2016
Location: Dominican Republic
Posts: 4,455
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Welcome. I cannot answer your question but you might find what you are looking for in the Rexhall owner's thread here:
http://www.irv2.com/forums/f283/
Good luck and enjoy the adventure.
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momdoc
2018 Tiffin Allegro RED 37PA
2016 Veloster Toad
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03-13-2018, 11:19 PM
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#3
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Senior Member
Join Date: Mar 2013
Location: Roseville, California
Posts: 2,622
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 Steve & Sheryl
2016 Crossroads Cameo 38RL
2015 GMC Denali 3500 SRW CC SWB
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03-14-2018, 11:16 AM
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#4
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Senior Member/RVM #90
Monaco Owners Club
Join Date: Nov 2002
Location: Columbus, MS
Posts: 33,386
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Hi Jim!  Welcome to IRV2! We're sure glad you joined the gang! 
Congrats on the new rig! If the filler tube goes fairly straight into the tank you may be able to insert a long straight rod to see if there's fuel in there. Keep her between the ditches!
Good luck, happy trails, and God bless!  
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Joe & Annette
2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
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03-14-2018, 12:43 PM
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#5
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Senior Member
Join Date: Nov 2015
Posts: 6,953
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Sounds like tank VENT is blocked/obstructed.
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2007 Dodge 3500 w/Tractor Motor & NUWA 5vr
FT traveling 2007 - 2014
Still DEBT Free
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03-14-2018, 01:50 PM
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#6
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Community Moderator
Newmar Owners Club
Join Date: Feb 2011
Location: Point Pleasant Beach, NJ
Posts: 14,981
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Glad to have you here in the forum with us. You're gonna like it here.
Happy Trails!!!
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Tony & Ruth........... FMCA#F416727
Newmar Dutch Star 4320, Spartan MM Chassis, Cat C9, Jeep Grand Cherokee Hemi, Blue Ox Aventa LX, and Brake Buddy. TST 507 TPMS
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03-14-2018, 05:46 PM
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#7
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Junior Member
Join Date: Mar 2018
Posts: 4
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Fuel gauge
Quote:
Originally Posted by Old-Biscuit
Sounds like tank VENT is blocked/obstructed.
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I seem to be able to add fuel each time I go to the pump and it seems to be about the quantity I would have used before it stops filling. So I am assuming the tank is full. The fuel gauge seems to sit on about ¼ until I turn the key on and then it drops to E. Also the generator is turning over but not starting and I am thinking that it is tied in with the fuel gauge and thinks there is not enough petrol left.
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03-14-2018, 06:52 PM
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#8
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Senior Member
Join Date: Nov 2015
Posts: 6,953
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Quote:
Originally Posted by Old-Biscuit
Sounds like tank VENT is blocked/obstructed.
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Quote:
Originally Posted by jimbokea
I seem to be able to add fuel each time I go to the pump and it seems to be about the quantity I would have used before it stops filling. So I am assuming the tank is full. The fuel gauge seems to sit on about ¼ until I turn the key on and then it drops to E. Also the generator is turning over but not starting and I am thinking that it is tied in with the fuel gauge and thinks there is not enough petrol left.
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From your 1st post .....
"The petrol tank sounds empty when you tap it yet I cannot get any more fuel in without blowback."
Generators typically have their own fuel pickup.....common to be at 1/4 tank level so that generator can not fully empty fuel tank and leave one stranded.
So IF you can pump fuel into tank in quantity you 'think' you used then sounds like fuel gauge circuit/sending unit etc is shorting out
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2007 Dodge 3500 w/Tractor Motor & NUWA 5vr
FT traveling 2007 - 2014
Still DEBT Free
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03-17-2018, 12:39 AM
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#9
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Member
Join Date: Jul 2017
Posts: 59
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Sure this is a silly question, but are you sure you are tapping, and the gauge is reading, the right tank?
My Airex has two petrol tanks, a main and a reserve, with their own fillers. There is only one fuel gauge on the dash, which reads whichever tank is selected. Selection is a toggle switch on the dash.
There is also a line from each tank to a manual selector valve just in front of the generator bay to choose which tank feeds the generator.
Richard
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03-17-2018, 12:45 AM
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#10
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Senior Member
Country Coach Owners Club Winnebago Owners Club Solo Rvers Club iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 33,492
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Didn't realize any non modified MH would have two tanks. I know it's done with pickups.
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2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Good Sam Lifetime Member, FMCA, SKP
RV'ing since 1957, NRA Benefactor Life, towing '14 CR-V
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03-18-2018, 01:50 AM
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#11
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Junior Member
Join Date: Mar 2018
Posts: 4
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Quote:
Originally Posted by Rickinnocal
Sure this is a silly question, but are you sure you are tapping, and the gauge is reading, the right tank?
My Airex has two petrol tanks, a main and a reserve, with their own fillers. There is only one fuel gauge on the dash, which reads whichever tank is selected. Selection is a toggle switch on the dash.
There is also a line from each tank to a manual selector valve just in front of the generator bay to choose which tank feeds the generator.
Richard
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Thanks Haven't noticed a separate filler and no toggle switch on the dash. What year is yours? This is a 1994
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03-18-2018, 07:42 PM
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#12
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Member
Join Date: Jul 2017
Posts: 59
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Mine is a '91
Richard
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03-20-2018, 12:57 AM
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#13
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Junior Member
Join Date: Mar 2018
Posts: 4
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Quote:
Originally Posted by Rickinnocal
Mine is a '91
Richard
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I have searched for what you describe and can find nothing. Are your separate fillers in different places or in the same place but you have to do something to fill the other tank. Can you post a photo of 1. Fuel filler place (or places) 2. Generator selector and 3. dashboard toggle switch location.
Cheers Jim
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05-17-2018, 08:36 AM
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#14
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Junior Member
Join Date: May 2018
Location: Northern Virginia
Posts: 12
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Fuel tank
If you have a Ford chassis, you may have a fuel logged float, a common problem. Quick test: Open wire to tank sender shows FULL, ~47 ohm to ground shows about 1/2, short to ground shows empty assuming the gauge end of the circuit is working (on my 1990 anyway).
Larry
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