So I read all I can before testing the solenoids on the manifold. I am having a problem getting the front up high enough to place the stands. I finally dump the tag and the front goes up enough to get the stands in place.
Now I go through all the solenoids and by moving them around I find that the second valve (not the solenoid) is failed or failing. Of course the only spare I have is failed also so I will have to order from Prevost today.
Here's the question(s):
1. I found that all of the solenoids are 12v except #3 which is a 24v version. Can this be correct or has some previous genius mistakenly put in the wrong one?

2. The failed/failing valve will lift the front as long as the compressor is running but when the dryer spits, the front goes down to road level until the compressor kicks on and starts the dance all over again. What's happening here?

Thanks for your input.