Pull from the Back, Return to the Front
Thread Starter
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Junior User
Joined: Feb 2005
Posts: 96
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From: london KY
Pull from the Back, Return to the Front
OK, so Whenever I use my rear tank, it returns to the front. Anything that can be serviced or cleaned in the selector valve. Or is it just a replace me type of thing?
I have been filling both, using the front down to 1/4, then switching and letting the rear fill the front back up.
I have been filling both, using the front down to 1/4, then switching and letting the rear fill the front back up.
Fleet Owner
Joined: Aug 2004
Posts: 20,419
Likes: 197
From: AZ
I can do that too, my front tank will fill up with fuel while I'm driving. Trouble is, I have to have my auxillary tank fuel and throw a toggle switch for the pump to do it
As far as the OP, I have no idea??
As far as the OP, I have no idea??
Last edited by oldbird1965; Nov 10, 2010 at 11:35 PM. Reason: forgot
Senior User
Joined: Aug 2009
Posts: 432
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From: Willow Grove, PA
Replace the selector valve. When you are switching from the front to the rear tanks the valve is allowing the fuel to be drawn from the correct tank, but the return (in the valve) is only allowing the fuel to return to the front tank. The slector valve is either not functioning properly (duh) or has an internal hole that "allows the fuel to return to the front tank only. Took one apart once but there was no way I was getting it back together, at least not functionaly. If your going to replace the valve you may want to replact the lines from the tanks as well to do the fuel line and vent valve upgrades. My $0.02.
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Junior User
Joined: Feb 2005
Posts: 96
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From: london KY
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Hotshot
Joined: Feb 2009
Posts: 10,408
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From: Plankinton, SD
The vent valve upgrades I think is the fix to get it to fill up easier at the station. I don't have a link to them though, someone else will.
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Fleet Owner
Joined: Aug 2004
Posts: 20,419
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From: AZ
I don't have a link to it either but its taking out the rubber hose that's in the middle of the metal fill tube. The factory design was to put the fuel down the rubber tube and around it would be the vent. The mod elimiates the rubber tube but then you have to make a vent hole in the metal tube and route this line down to the tank for a vent. Mine's a lot better but I should make my vent bigger. Pulling my 5er sometimes I have no choice but to fill up with the semi trucks bigger hose.
Posting Guru
Joined: Nov 2007
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From: West Texas
Do the diesels not have check valves on the fuel tanks like the gassers from these years? There was a recall I know on gas engines for this problem that called for replacing both check valves. I don't remember ever doing a diesel though.
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From: Medford Oregon