Fuel Tank Switch
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Junior User
Joined: Dec 2003
Posts: 83
Likes: 0
From: Maryland
Fuel Tank Switch
Hope you guys can help with my latest problem. My truck has two fuel tanks but when I hit the switch nothing happens. It is stuck on the rear tank. The swtich appears to be fine although I have not tested it with a meter. I took it apart and everything is clean and moving correctly. Anybody have any suggestions? Thanks in advance for any help. Bill
Thread Starter
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Junior User
Joined: Dec 2003
Posts: 83
Likes: 0
From: Maryland
Thought I would let anyone who cared know what it took to solve this particular problem. I checked and cleaned the switch as suggested by Drover, and unfortunately that didn't take care of the problem. PLC sent me some pages out of, to me, must be a magic book. I finally got a chance to spend some time on it tonight. I checked the continuity on the switch as suggested and all was ok. Checked it at the fuel transfer switch and thats were the problem became more clear. I obviously had a break in a wire. I thought, how the heck am I ever going to trace all these wires. So I just jumped in and sure enough, found a wire that had a worn spot big enough to let in moisture etc. and the wire broke apart. Repaired it and the switck/transfer valve wrok fine. Can't hank PLC7.3 enough for the info he sent me, I never could have done this without that info. I love this site! Thank you all. Bill
Hotshot
Joined: Feb 2004
Posts: 11,697
Likes: 3
From: Marengo, Iowa
Glad you got it fixed and was not too bad to do. So now I am going to hijack your thread!
I'm working on a 92 F350, currently 460 gas. It would appear that the method of switching tanks is to change which pump is running, apparently it has check valves to keep from pumping into the other tank. My question is this: I am in the process of changing this truck to a diesel, so what is the normal way ofswitching the tanks on a diesle of this year, a mechanical switch like mentioned here, and on my 86, or is it some other way? I was going to eliminate the electric in tank pumps, and then I discovered there is no switch... Suggestions?
I'm working on a 92 F350, currently 460 gas. It would appear that the method of switching tanks is to change which pump is running, apparently it has check valves to keep from pumping into the other tank. My question is this: I am in the process of changing this truck to a diesel, so what is the normal way ofswitching the tanks on a diesle of this year, a mechanical switch like mentioned here, and on my 86, or is it some other way? I was going to eliminate the electric in tank pumps, and then I discovered there is no switch... Suggestions?
Post Fiend
Joined: Nov 2004
Posts: 5,638
Likes: 1
From: Manitoba
I would advise find a donor truck and get the Fuel selector valve, the 2 tank pickups and all the lines. I may be wrong but does your gasser have only one line per tank??, our diesels need 2- 5/16 and 3/8.
Hotshot
Joined: Feb 2004
Posts: 11,697
Likes: 3
From: Marengo, Iowa
it does have return lines, most injection setups do. That was my thinking though, to get a switch and set it up right, I didn't really want to be tied to those damn pumps anyway, too expensive when they fail. Also been thinking about switching out the front steel tank for the poly from the Dodge, the rear already is poly.
