hey guys, new to this forum and hoping I can get some help. I just recently bought a 1993 F-350 xlt crew cab long bed off a fire house and its only got 35,000 miles! I love the truck and it runs great. however the front fuel tank doesn't work. what is happening is when you switch to "front" on the selector it will run for 10 seconds then the fuel filter light will come on and it will stall (if you let it)... any suggestions would be GREAT!!!