Tommy J

Yep, kind of what I was thinking and the switch being on 4 hi is even stranger. I'm not exactly sure if some of the vacuum is stored when turned off but I could be wrong. Theres a forum with a guy whos kind of an expert with this system and diagnosing it but I can't find it again. I checked my rubber lines at the selonoid and the wheels and there is suction but theres check valves and other stuff that could act up so who knows. Thanks