Dual tanks - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mcssls · 01-15-2007, 07:51 PM

I have dual tanks on a 76 stepside 4x4. When I swith the factory switch the guage is all that changes, there's no sound or hit that it will try to switch. I'm sure I need a new selector valve. Strange part is there's a switch on the door side of the column that someone added. When I hit it it sounds like a dry fuel pump, under the truck whatever this is looks stock. Looks too big for what I think of as an electric pump. Any ideas? Is it original? If so what is it?

01-15-2007, 07:51 PM	#1
mcssls Registered User Join Date: Jan 2007 Location: Phoenix AZ Posts: 9	Dual tanks I have dual tanks on a 76 stepside 4x4. When I swith the factory switch the guage is all that changes, there's no sound or hit that it will try to switch. I'm sure I need a new selector valve. Strange part is there's a switch on the door side of the column that someone added. When I hit it it sounds like a dry fuel pump, under the truck whatever this is looks stock. Looks too big for what I think of as an electric pump. Any ideas? Is it original? If so what is it?

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