Dropped off my brand (325 mi) new 2004. 5 2500 this morning to have a 5th wheel hitch put in it. They drilled a hole (probably 1/2 in) through the gas tank and plan on keeping my truck at their shop till a new gas tank can be installed. I need my truck and would like to know if some kind of temporary patch can be safely applied till my tank comes in. My Dodge dealer says NO and so does the hitch installer. Does pressure/or vacuum build up in there or am I just concerned with fuel sloshing out? Any ideas. Thanks Bernie.