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71
Technical Support / Re: No Air Pressure??
« Last post by Eric Maclean Co-Admin on April 10, 2026, 12:15:22 PM »
Roger
With your air drier it is often cheaper to buy a complete rebuilt unit than it is to buy individual parts to repair one.
Do you know which model and make the air dryer is.
If you have a haldex pure air plus like the one in the link below and decide to change the filter cartridge try to get it loosened before you remove the unit from the vehicle chassis as they can be seized on and take a lot of torque to get them to come loose.



https://www.anythingtruck.com/product/052-170DA33100.html

Hope this helps
Eric
72
Technical Support / Re: No Air Pressure??
« Last post by Roger Milne on April 10, 2026, 11:42:55 AM »
Sorry for the delay in replying been a busy few days driving.

But wanted to update the situation and get some feedback. So managed to find a mechanic to come out on Easter Sunday and trouble shoot the air system. We found a substantial leak on the back of the air dryer body and we cobbled together a bypass for that and immediately started building pressure again. The only side effect was the air hammering the supply tank as it charged but stops when it hit max pressure. Sounds like someone tapping on the tank with a metal hammer but it does the job.

So now we have reached our destination and I can get some tools I’m gonna pull the air dryer body off and see where the leak is coming from. Then track down a replacement.
But doing this has uncovered another issue. So it appears I have a line leak in the rear right somewhere else as the tanks fill and discharge and as soon as I shut off the engine the back rear bleeds the tanks to zero over night. So that’ll have to be investigated as well.

So I appreciate everyone’s advice and videos etc. and will post another update when I get the air dryer off and see what’s up with that.
73
Technical Support / Re: Vorad
« Last post by Michael Hammer on April 10, 2026, 07:24:09 AM »
Yes, could you post the company that did board repairs. Thanks.
74
Technical Support / Re: No Air Pressure??
« Last post by Eric Maclean Co-Admin on April 07, 2026, 04:44:36 PM »
Roger
This might help you understand and troubleshoot the governor, compressor and air drier.

https://youtu.be/bmgSwSeLk_o?si=Whx7W1D9RPOiNeEP

Eric
75
Technical Support / Re: No Air Pressure??
« Last post by Roger Milne on April 05, 2026, 03:36:27 PM »
Ok. Good to know. Apparently the local NAPA store here in Van Horn has one but is closed until tomorrow. Will go that route first thing in the morning.
76
Technical Support / Re: No Air Pressure??
« Last post by Frank Bergamo on April 05, 2026, 03:17:27 PM »
I would look at the air governor first. They are cheap and can be found at any NAPA or truck place.
https://www.napaonline.com/en/p/BNDBENOR275491X?srsltid=AfmBOopTf_e_N9aDErTU0dxEAmegEjE49t_dqFghb9TdQ5ydIgb8_MLPBeA
Good luck, hope this helps.
77
Technical Support / No Air Pressure??
« Last post by Roger Milne on April 05, 2026, 02:51:10 PM »
Thankfully broke down in a camp site but between Arizona and South Carolina.
Pulled in last night and this morning I’ve got no air pressure.
Tanks won’t recharge and obviously Park Brake won’t release.
Where should I start trouble shooting? Is this an air compressor issue or air governor?
Any help on Easter Sunday LOL would be helpful.
78
Technical Support / Re: Replacing aux air compressor
« Last post by Fred Cook on April 05, 2026, 01:41:26 AM »
Not mine…. Belongs to a friend of a friend. Really lucky to use it. About five years ago, I was able to rent out a pit from a local business. You may be able to find a local business that would rent one to you.
79
Technical Support / Re: Replacing aux air compressor
« Last post by David Ciotti on April 03, 2026, 01:25:46 PM »
Can I borrow that pit for a day or two?  :)
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Technical Support / Re: Replacing aux air compressor
« Last post by Fred Cook on April 02, 2026, 11:48:47 PM »
Quote from: David Ciotti on April 02, 2026, 02:34:36 PM
I don't build ramps, I just stack 2x12,s to raise the front end.  Usually 3 high is all I need.  I have crawled under there and sat upright to inspect and replace all kinds of stuff.

Thanks for the input. I now have access to a pit allowing me to stand under the coach. Will be getting it done tomorrow night or Saturday if needed.
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