Recreational Vehicle Lpg Tank Valve/gauge problems of the 2006 Jeep Cherokee

I will be going at any speed and my Jeep will just die or spit and sputter like its not getting gas then the rpm gauge drops to zero all the dash lights come on. This happens on the highway in the middle of intersection and it happens intermittenly so you never know when its going to happen. Took it to mechanic and they told me the valve body selnoid was bad. If you search any of this online you will see that there are several people with the same problem this needs to be a recall before someone ends up dead!!.