Recreational Vehicle Lpg Tank Valve/gauge problems of the 2007 Chrysler Pacifica

This vehicle has had one major issue with the fuel system. When the fuel gauge gets to half way, the gauge drops to e and does not want to accept gas. It acts like it's full and you can barely put any gas in. When this happens the vehicle acts like it's out of gas even when it's not causing me to run out of gas while driving down the interstate and sometimes the car won't even start when it drops below half way. Also, my odometer reads gascap like there's a leak but it's a brand new gas cap. I've read days worth of information on the world wide web and this is the most common issue but noone has done anything about it. It is not fair to the consumer. I know I will never buy another Chrysler and I will warn others not to also. Not only that but my seatbelts do not work anymore, two of them anyway. My kids have to sit in the far back to buckle up. I bought this vehicle used. I've had the fuel pumps replaced, the vapor canister and vapor filter replaced, gas cap, ect. Nothing repairs the issue. I know now why the previous owner gave it up, if I didn't have to pay a down payment, I would have already let it go back.

The fuel gauge is not showing correctly. It reads that the fuel tank is half full then it suddenly drops to empty. The miles to empty gauge is not calulating corectly either. You can not tell how far you really can go before the car will run out of gas. When I attempt to fill the fuel tank, it will not let the fuel flow into the fuel tank. It stops as if it is full, but it is not.