What Would Cause Roadmaster Even Brake to Leak Air
Updated 02/24/2025 | Published 02/17/2025
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Question:
I have a roadmaster even brake that I’ve been using for years, but I’ve always felt it hasn’t been accurate. I replaced a transmitter with a new one because the signal I’m getting at the monitor on the dash gives me false readings, that didn’t help. now after the compressor turns off, and I go to do a test in the tow vehicle all the air is exhausted out leaking somewhere. There is a major leak somewhere in the cylinder or line area. My question is, is this unit worth fixing because they are very expensive to replace or what options do I have? I have a 43 foot diesel pusher motorhome towing a full-size crew cab Chevrolet. I am looking to purchase a Colorado as a new tow vehicle. Thank you
asked by: Kevin K
Expert Reply:
Hey Kevin, if you were looking for an excuse to upgrade to a newer braking system like the Blue Ox Patriot part # BLU37TR now would be a great time...but typically if the Roadmaster Even Brake Portable Supplemental Braking System # RM-9400 is having a leakage issue it's either the Air Cylinder # RM-452109-10 or the exhaust valve # RM-450601-50, with the exhaust valve usually being the number one culprit.
I recommend checking the exhaust valve with some soapy water and seeing if you get any bubbles and we can go from there.
Kevin
2/24/2025
Good morning Jameson. I finally took cover off my even brake to see where air was exhausting when i pressed test button. The valve that is connected to cylinder I assume is quick exhaust valve you recommended I check. So, when I press test button air is released out open exhaust port and cylinder moves very little even when not connected to brake pedal and test it on work bench. Before I just throw parts at it please advise me. Thank you, Kevin Carroll
Jameson C.
2/24/2025
Jameson C.
2/24/2025
Product Page this Question was Asked From
Blue Ox Patriot Portable Flat Tow Brake System - Proportional
- Flat Tow Brake System
- Brake Systems
- Proportional System
- Every-Trip Setup
- Built-In Battery
- Portable System
- Power Assist Brake Compatible
- Air Brakes
- Air Over Hydraulic Brakes
- Hydraulic Brakes
- Wireless Display
- Blue Ox
more information >
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Kevin
2/17/2025
I will do that tomorrow. Also, when I look up the even brake by application “2025 Colorado” on your web sight, it says does not fit that application. Is that correct? Thanks for your response Jameson.