Posted 9/17/2024 08:05 (#10893605 - in reply to #10893567) Subject: RE: '01 FLD 120 Air question
Those are Quick Release valves for the trailer air. They can be eliminated but that will cause more air to exhaust through the dash. They do go bad and yours are 23 years old. It is possible and not uncommon for a brake chamber to be bad and cause air to leak back through the blue side of the trailer connection,
'01 FLD 120 Air question
