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#1 |
Registered User
Join Date: Mar 2002
Location: Agua Dulce, Ca. usa
Posts: 179
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Gas tank switch over valve stumped
Well I thought I put some foreign material in the lft tank not sure, soon after the truck would run out of gas on the lft tank and NOT switch to the rt tank with the electric switch. right tank would run fine and took me home from vacation . Pulled the left tank to check for foreign material it was completely clean and no rust. blew through all the lines and free. put tank back. still runs out of gas on the left tank and then will not switch over to the rt tank, take the supply line off at the inline clear filter b4 the carb fuel pump and then the switch over will go to the rt (good side). changed out the switch over valve still have the same problem. blew out all the lines and all seem free I AM STUMPED ON WHAT TO DO NEXT. tried to test all this without the gas caps on vent is free and this is the 6 port switch over valve with a supply return to the carb pump on my 80 dually 1ton pu. 454. and a supply return to each side saddle stock tanks. any suggestions I am lost for what to do. next. thanks Ed ke6bnl left side is energized with 12volt pwer is working to the valve.
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Ed ke6bnl Agua Dulce 70 S.E. Los Angeles 70 Chevy short bed 1948 F3 ford pu 1949 F1 stock V8 flathead 3 on floor 1950 F1 pu street rod 1948 F6 Ford Dually/350sbc no bed stock trans&rear 1972 El Camino 4" chop 1953 Chevy 3100 2b daily driver 1970 SB 4X4 400ci 6in lift |
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#2 |
Registered User
Join Date: Apr 2005
Location: Tulsa Oklahoma
Posts: 943
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Maybe The Valve It Self Is Messed Up ?????? Mine Locked Up Basically In The Middle Of Switching Tanks $55.00 At Dealer And I Drove Again
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square body trucks an addiction or an investment either way they consume all my extra time and money |
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#3 | |
Registered User
Join Date: Mar 2002
Location: Agua Dulce, Ca. usa
Posts: 179
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Quote:
__________________
Ed ke6bnl Agua Dulce 70 S.E. Los Angeles 70 Chevy short bed 1948 F3 ford pu 1949 F1 stock V8 flathead 3 on floor 1950 F1 pu street rod 1948 F6 Ford Dually/350sbc no bed stock trans&rear 1972 El Camino 4" chop 1953 Chevy 3100 2b daily driver 1970 SB 4X4 400ci 6in lift |
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#4 |
Registered User
Join Date: Apr 2005
Location: Tulsa Oklahoma
Posts: 943
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im kinda confused by this myself but you mentioned something about removed the inline connection around or at the inline filter and it will switch, i would try changing the inline filter maybe it is building pressure at that point and not allowing it to switch ??????????i dont know this to be fact but sounds logical to me what do you think let me know if i can be of anymore help for suggestions 86 gmg
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square body trucks an addiction or an investment either way they consume all my extra time and money |
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#5 | |
Registered User
Join Date: Mar 2002
Location: Agua Dulce, Ca. usa
Posts: 179
|
Quote:
__________________
Ed ke6bnl Agua Dulce 70 S.E. Los Angeles 70 Chevy short bed 1948 F3 ford pu 1949 F1 stock V8 flathead 3 on floor 1950 F1 pu street rod 1948 F6 Ford Dually/350sbc no bed stock trans&rear 1972 El Camino 4" chop 1953 Chevy 3100 2b daily driver 1970 SB 4X4 400ci 6in lift |
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#6 |
Registered User
Join Date: Apr 2005
Location: Tulsa Oklahoma
Posts: 943
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sorry to her that mt wife hates it when she has to pick me up (not near as much as i hate it though
![]() do you think that the sending unit (i think thats the right name unit that screws in to the top of the tank might have a pine hole in it somewhere that is sucking air and fuel? i bent a fuel pump hose barb once i didnt think anything about it but the damn truck wouldn't start changed pump it worked that reminded me of staightening the pump in the beginning, where i bent it cracked and allowed air to pass through hopefully this will be the problem b/c i think im out of ideas check the fuel line between ele. switch and left tank as well for a small rub or something best luck!!!! 86 gmg
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square body trucks an addiction or an investment either way they consume all my extra time and money |
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