Posted 12/11/2018 18:51 (#7164795 - in reply to #7164225) Subject: RE: Air brakes not releasing on one side - possible ice?
SW Indiana
Takes air to realease as you know. Unhook supply lines from valve on air tank. Have someone push the trailer brake release and see, hear, and feel for equal pressure out both sides of valve.
My guess is a park brake valve will fix you right up. They're cheap to, way cheaper than the abs service valve.