Recreational Vehicle Lpg Tank Valve/gauge problems of the 2006 Ford Five Hundred

Cluster constantly gives out, there is a recall in place for the 2005 version which has the same issue but not the 2006. The cluster has been replaced twice already, everything suddenly stops working have received numerous tickets at this point for going over the speed limit because of this issue all cluster gauges stop working there is no way to no how fast you are going.

From the day I bought the car the a/c has not worked properly. It only cools at highway speeds or when temperature outside is less than 70 degrees, the engine has never idled smoothly and water collects in the doors. The main issue I've been having is that it surges at stop lights and totally shuts down going down the road. Motor, gauges everything shuts down sometimes for 8-10 seconds. This is sporadic and more common when the a/c is in use. I have had the throttle body cleaned and reprogramed several times with no change what so ever. I just had a new one installed and it shut down on me within 1 mile of dealership. It has been very frustrating to say the least. I've been saying it is something with the a/c since day one but all they wanted to do is replace the throttle body. I am at my wits end and just want it fixed!.