doogan52

I have a 78 ford f150 with a 351 Windsor and a normal bed I only have one gas tank located in the rear under the bed. however my problem is my gas tank will only $30 at a time and my fuel gauge says its full and acts normal when it says its half full it is and when it says its empty it is. the odd thing though is it only takes about 8 or 9 gallons? is this even close to what its supposed to be?

bpmarmstrong

The tank is bigger than that its like 19 I think.

doogan52

I agree I believe it is supposed to be a 19 gallon tank however i cant even fill up close to that before my tank acts like its full. Would there be a reason that a 19 gallon tank would would act this way a clogged filter or vent or something?

Aaoxen

I had the same problem. I only have a rear tank too. Check the vent hose and also check the fuel hose. My fuel hose was crimped and my vent hose was also. There is very little space for the hoses between the bed and frame.

Fourwheel

Check out the "Tech Tools" button at the top of this page. Click VIM Decoder, it will tell you a lot of cool specs on your truck including gas tank size.