Dinosaurman
Piney Woods
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Joined: 04/30/2004
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Cool Mike wrote:
And I have never heard of having two gas tanks on a class c Motor Home.
My Chevy class C has two 30 gallon tanks, but one was installed by the previous owner. Really comes in handy.
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goreds2
OH H ..... EYE OH
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Joined: 09/01/2008
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79powerwagon wrote:It's full. Your gauge sending unit doesn't work right. It's a Dodge thing, they are all like that. 
I just filled it up after I discovered this gas gauge issue. 185 miles on 18 gallons of gas.
The gas gauge again only went up to about 3/4 again. Oh well, for $1800 bucks on the purchase of this MH, I am not going to worry about this. I will just fill up after around 200+ miles.
1976 Dodge Sportsman/Travel Mate (16 Ft.)
Purchased 9/11/2008 for $1800
Came with an external Champion 3500 Generator
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79powerwagon
S.E. Wisconsin
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Joined: 06/30/2007
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WOW! 10mpg! Not too shabby at all!
She ain't purdy, but at least she's slow!
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ron.dittmer
Near Chicago
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Joined: 02/26/2007
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It is difficult to say for certian for your particular chassis, but quite often such issues are caused by a bad ground. Ground straps get corroded, then such things get squirly. Look for a wire with a terminal/eyelet on the end that is screwed or clipped to the frame. Disconnect it, replace the terminal/eyelet, clean up the frame metal, grease it all up, and screw, not clip, the ground wire back on.
Bought new in June 2007, Phoenix Cruiser-2350
Fits inside our garage.
Dingy towing a red Toyota MR2 Spyder
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goreds2
OH H ..... EYE OH
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Joined: 09/01/2008
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ron.dittmer wrote:It is difficult to say for certian for your particular chassis, but quite often such issues are caused by a bad ground. Ground straps get corroded, then such things get squirly. Look for a wire with a terminal/eyelet on the end that is screwed or clipped to the frame. Disconnect it, replace the terminal/eyelet, clean up the frame metal, grease it all up, and screw, not clip, the ground wire back on.
I will check around. Thanks,
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goreds2
OH H ..... EYE OH
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79powerwagon wrote:WOW! 10mpg! Not too shabby at all!
No, it is 10.28 miles per gallon, thank you very much.
* This post was
edited 10/23/08 03:08pm by goreds2 *
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T18skyguy
Eugene, OR
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Joined: 12/13/2004
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It's a combination of fuel tank design and gauge inaccuracy. Tanks are only designed to accept an 80 percent fill. This is to allow room for the gas to expand as it warms. Add in a less than perfect level at the filling station then that affects it too. No wonder we have a hard time figuring gas mileage.
Retired Anesthetist. Pilot with mechanic/inspection ratings.1996 Jayco C 22 foot with 460/Banks Powerpak/Bilsteins.Wife and daughter. Two cats which control my life. 1975 Ford F-250, 84 Coupe Deville, Thorp T18, tons of tools and tons of junk.
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Crowe
Billerica, MA USA
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Joined: 01/29/2002
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We also have an issue with our gas gauge. Tank is 80 gallons and what we've figured is when it gets just below 1/2 we put in 50 gallons. Then we know we've got about 400 miles until we need to fill again.
Life is too short to spend it all in one place!
2004 Gulfstream Endura
2005 Chevy Tahoe toad
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Foggy
Kalamazoo Mi. U.S.A.
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Joined: 04/01/2001
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Considering the age I would bet that fuel gauge float is not floating as high as it once did. As long as it tells you empty before you run out and gives you a rough idea of fuel level in the middle I would not consider it worth the trouble to fix.
Happy-Trails
Foggy
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ramrunnr
Randleman, NC, USA
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Joined: 10/03/2006
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I have a 91 S-10 4x4 pickup toad that had a really screwy gauge. Fill up the truck and the needle disappears past the "F", behind the dash, drive the truck and about the time the tank gets to 1/4 full the needle reappears and starts dropping like a stone, figuratively speaking. It hits the "E" and begins to sputter. The problem was fixed, after I had removed the bed, I removed the pump/sending unit from the tank, the sending unit was rusted from where water had gotten into the tank at one point. Replaced the unit and the gauge has been fine ever since.
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