I'm interested in getting pictures of the HWH units which maintain the leveling on my '96 U-320. I'm still losing air from the front one, both in travel & park modes. It was suggested that I spay 'Jig-A-Loo' into the openings to loosen the check valves but I am not sure where?
I would say that it is the front step and piston if you have not checked that. It is notorious for leaking and it looks like the front leak unless you see the airbag drop.
The right side drops down AND I hear the air leaking when I am parked and the engine is running.
So I think it's the valve NOT the air bags. When I raise the front end the valve held. I don't think it's the step