I was hoping someone could help me w/ ques. abt the underseat gas tank in my 37'pu. Is the air vent valve on top, that vents out the bottom prone to break or quit working?? Do I need to do something to check/test it out?? Also, what kind of gas cap is used on the tank?? It looks like some special kind of threads not normal for a fuel cap. I just don't want alot of fumes in the cab. Thanks for any help. Mark H.
