One problem related to recreational vehicle lpg tank valve/gauge has been reported for the 1999 Chevrolet Silverado 2500. The most recently reported issues are listed below.
The fuel gauge malfunctions after filling tank - it reads empty immediately and intermittently thereafter at any fuel level. It makes it difficult for traveling any long distance as you are not quite sure how much fuel is available or if it will shut down on me during a difficult situation. We have contacted gm and they want to charge me to check it and this has been reported as a problem for multiple models to gm.