Farmwithjunk
Super Member
We used to have an International 2 ton grain truck. Shortly after we got the thing the fuel pump went out of it. I filled both tanks on it one morning and started hauling corn. The next day I was getting low on fuel so I flip the switch on the dash and the fuel gauge showed full as it should since had not used any out of it since I filled it. I am cruising along on my way back to the field (so I was empty thank God) when it died. I check it all out and I find it is not getting any fuel. I figure the fuel pump is bad again. It was on a busy high way and getting close to dark so I have a tow truck tow it to the shop. The next morning I walk in and my uncle has it running like a top. The switch on the dash is for the fuel gauge only, to switch tanks there is a valve behind the seat. Talk about feeling stupid.
Same thing on a 1977 Ford Bronco I owned. When I sold it, the buyer started home, ran low on gas in the main tank. He switched the dash switch. That showed the auxillary tank full. In just a few miles he ran out of gas. I got an irate phone call. All he had to do was reach under the front seat and turn a valve that directed flow from main to auxillary tank.