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That is the valve thanks, so it basically changing brake bias based on load, doesn't sound like the end of the world to bypass this feature or not? Knowing BAE its probably a 2500 dollar part lol

update on rear brakes issue and help needed My mobile mechanic called and said he inspected the M1078 for the inversion valve purging excessive air as some may recall He said he narrowed the issue down to a module with an air house that is above the diff but in front of it that has a spring...

Yes I am going to do the soapy water test as the mark 1 ears didnt hear anything from other spots and as for our resident mod, I am not driving the vehicle until it is corrected but please dont imply that I am not capaable of working on the vehicle. Thank you for the concerns though.

Whatever the previous mentioned valve was is where the leak is

yuThe leak is coming from that purge valve only. I also inspected the spring pucks and noticed the adjustments. Could this be an issue. The tow truck driver had messed with them to unload.

Looked at it again last night as compared to my mtv on the air spring assemblies the mtv has plastic blue covers on the inboard side while the lmtv does not

Also if the CTIS box is flashing all modes, what TM should I use to address this issue, does anyone sell a kit with all the seals to make these work again?

So is that stating there is another failure causing that to vent while the service brakes are applied? I get an air leak down of about 2-5 for 2 seconds of depression on the pedal, so if you apply multiple times to stop it will get to the warning buzzer, but normal course of driving I was able...

Roger

Page or section 2-1639 in the TM for a M1078 http://www.steelsoldiers.com/upload/M1078/m1078_TM%209-2320-365-20-2.pdf

when i was looking at 2-1639 i didnt see anything that mentioned the other parts adjecent to the valve

The leak is coming from the device to the upper left in the photo from the "relay valve control unit" per the TM, i couldnt find a part name in the TM for it when i was reading it today, but it looks like some kind of air switch and is blowing out of the brass piece on the right side which might...

The center valve thing up high leaks from a brass plunger on the right

Someone was telling me there is an air brake adjustment on the calipers that can cause excessive venting if not set?

The air should only bleed on release of the brakes correct?

Just got my 94 M1078 dropped off at the yard and you can hear and kinda feel a massive rear air brake leak when appliing brake pressure by the top of the rear axle assembly, it was really late last night but it looked like it was coming from some distrubition hub block in the center up high or...