After my last use of the coach, I noticed that there was an air hiss coming from behind the rear axle on the passenger side. I found the device in the picture was constantly leaking. What is this and what does it take to fix it?
Thanks for your help
Rick
Possibly retarder accumulator Norgren valve?
Help Air leak from top of the transmission (https://www.foreforums.com/index.php?topic=42427.msg424971#msg424971)
See also
Air leak (https://www.foreforums.com/index.php?topic=36410.msg345906#msg345906)
Not a real good pictures but It looks to me like the air dryer. The purge valve is leaking. Looking at the craters in the dirt it looks' like they are under the dryer when it pops after compress shuts off.
Many posts on this subject.
The second topic I linked has several topics within it that show R&R plus some part numbers.
Good photos in the PDF Dick S attached in this topic Replacing transmission retarder valve (split from What did you do to your coach) (https://www.foreforums.com/index.php?topic=17318.0)
Big Air Leak Hydraulic Accumulator (https://www.foreforums.com/index.php?topic=15185)
Mike's got a great write-up on cleaning/restoring the valve Allison retarder air valve (https://www.foreforums.com/index.php?topic=31477.0)
Thanks everyone. Called Foretravel and they have them in stock. One is on its way. (about $135}. I'll see about installing it next week.