I am the owner. This lift has and will continue to be maintained by a certified tech. I pulled the engine out and rebuilt it myself - I am an ASE Certified Mechanic but have 0 experience with propane. This problem existed before the rebuild and continues after. The tech is more than willing to start changing parts. The problem I have is that everyone just seems to want to change parts and eventually we find the right part - the problem gets fixed. In the meantime I've spent all of the money on everything else that I really didn't need.

All I'm trying to accomplish is figure out which part I need to fix the first time.