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Author Topic: Dual gas tank need help  (Read 3289 times)

Offline SMURff

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Dual gas tank need help
« on: December 10, 2015, 06:26:46 pm »
Hi guy my names Estevan I have a 1978 Cheyenne v8 5.7. I'm having trouble with the dual gas tanks, right now I have the valve bypassed to my passenger side tank. But when ever hook up both tanks my tuck seems to big out and die. I already bought a new selector valve and installed it still bogged out and killed my truck. Any suggestions on what it could be.?
Thanks in advance Estevan
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78 Cheyenne

Offline Irish_Alley

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Re: Dual gas tank need help
« Reply #1 on: December 10, 2015, 07:42:14 pm »
is it as soon as you switch tanks it bogs and dies? or does it run ok for a while
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If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley

When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes

Offline SMURff

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Re: Dual gas tank need help
« Reply #2 on: December 10, 2015, 09:12:46 pm »
It runs for a while but I don't even have to switch tanks and it will die
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Offline Irish_Alley

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Re: Dual gas tank need help
« Reply #3 on: December 10, 2015, 09:48:49 pm »
ok, so which tank is hooked up now? will it stay running just off that one tank?
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If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley

When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes

Offline Militiaman55

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  • 74 K10 Cheyenne
Re: Dual gas tank need help
« Reply #4 on: December 10, 2015, 10:27:27 pm »
I know it seems simple and unlikely, but be sure your not hooking your vent line to the switch/pump inlet.  The center tube on the sender is the vent and the off-set tube is the pump suction/fuel line.  The first time I hooked up my tanks, I played that game...

Rob
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Offline SMURff

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Re: Dual gas tank need help
« Reply #5 on: December 11, 2015, 12:39:00 am »
Yea it will stay running off my passenger side tank I've had it running like that for a while now

and gas comes out of both lines once I unhook them so I'm certain it's not the vent tube
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78 Cheyenne
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