Hi all! I fueled my 2012 wrangler unlimited yesterday while the engine was running. The gauge is still reading almost empty although it has a full tank. It only has 18500 miles on it. I am sure it is covered under warranty and i made an appt for monday to have it checked at the dealership. I would rather not spend my morning there however. I disconnected thd battery then reconnected it but still reading empty. Any suggestions?