What tank is the primary on a 1975 ford f 250


Asked by Nov 09, 2013 at 12:23 AM about the 1975 Ford F-250

Question type: General

3 Answers


I am going to assume that it is a stock truck with front and rear fuel tanks and a switch on the dash that says front-rear, not a valve on the floor that switches the tanks. Back then they considered the front tank as primary because it was larger than the rear tank, but they never came right out and stated that and the reason was that they were making some rigs with only a rear fuel tank.

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Ya just bougt it was Out of gas when i got it and was just wondering. It fires with ether but wont start. Thinking a litte bad gas was in the tank. The tank select switch doesnt work i think because it reads the same level when i switch it. I will trouble shoot it tomorow. Any advise on what to check?

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The switching valve was a high fail unit closely followed by the switch.

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