Alright I have a gas problem with my 1992 F150. I have 2 gas tanks and when i fill up the front i can drive around for a while and in about 30minutes Im about empty so I'll switch it to the back tank and it has all the gas. So I'll be driving and all the back will go up to the front again and so on and so forth. Any suggestions on how to fix this problem????

 

the float maybe messed up, that or the guage my '98 ranger did that, after i got under half a tank it went to empty, but i still had half a tank, and they wanted 400 bucks to fix it, so i drove it like it was

 

sounds like bad check valves in the pumps

 

Beano.

Sorry, couldn't resist...............

 

sounds like check valve!!