I need help. I got a 1991 F-super duty that keeps losing prime within seconds. I just got the truck and was told the fuel selector valve was removed because it went out, and the previous owner tried to prime it just using the starter and fried the starter. I got a new starter today and have been trying to get it to run all day. It will run with a rag with gas on it or when the schrader valve on the fuel filter housing is removed, but when the valves removed it will only run about 10 seconds before it dies again and it’s a fight to get it to reprime. I’m stuck and need major help, I need the truck running by Monday.