Front Air Bags wont deflate via the Ride Height Control valve
I'm having a problem with my front air bags. They wont deflate (which is probably why my front end is so bouncy on rough roads).
I started working on this because the front ride height was too high so I tried to adjust the front Ride Height Control Valve and discovered air will not exhaust when I rotate the valve body downward. So, I ordered a new RHC valve and installed it today to find that its doing the same thing.
Then I removed the line coming "out" of the RHV going "to the front air bags" and no air is coming out. I believe there should be a straight path from the RHV through the HWH Travel solenoids to the front Air Bags. I checked the Travel solenoids (16 ohms) and they get magnetic when energized (so they are working). Maybe something inside the HWH body is blocked.
But air is going into the bags. I can manually deflate the bags using the HWH lower" button, and the bags deflate. Putting HWH into Travel mode and the air bags inflate.
So why can't I get any air on the air line going to the Bags at the RHV?
There is a Dump Air rocker switch on the dash. I'm not sure if this goes to the HWH manifold to dump air at the HWH 6-pack (and the HWH control panel has a Dump button already) or if there is a dump solenoid somewhere in the front end - maybe between the RHV and the HWH 6-pack. I cant find anything (but view is limited). If there was a Dump solenoid between the RHV and the HWH 6-pack, it would have to have a check valve in it (letting air into the bags but not letting it come out. But then how would the RHV do its adjusting when in travel mode if the air cant exit back through the RHV)?
This one has me stumped so far. The drawing below are from the HWH manual. I don't know if my Beaver is doing something different or has additional components.