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Also, thanks to all of the other people that tried to help me with this problem, I was really frustrated. But like my wife put it....."you got to know your truck":)

Jeff, Thank you soooo much!!! You solved my problem! I took so much stuff apart on the truck trying to figure out where my problem was it's ridiculous. Not sure why the valve was closed but this morning I opened it and my problem was solved. Thanks again man, I wish I would of read your post a...

Do you have a picture of what the front passenger side valve looks like? I will look at mine today when I get to the office but if I recall correctly it looks like the fitting is broken or its missing something. Thanks

were the crossed lines at the valve bodies were the line converge above the axles? how did you troubleshoot the problem? any help would be great

Thanks for the clear explanation.

haven't done one.

I have to correct my previous answer, I just bled the truck air system and noticed that very little air if any comes out of the lower bleed valve PS.

I get air out of all 4 valves on the PS, I also get air out of the rear right glad hand, not sure about the pressure but it comes out strong and there is plenty of volume. All of the glad hands are valved.

Both tanks pressure up they read somewhere between 110 and 120 psi (never took note exactly how many psi). Yesterday I noticed the spring brakes on the center axle are caged, not sure why. Today I plan on uncaging them and continuing to troubleshoot the brakes. Still havent found why my rear...

I hear air blowing out when I release the pedal but not sure if it's enough (don't have another truck for comparison). The brake shoes definately stay up against the drum and dont release, but after the truck sits for about 3-5 minutes the shoes release. Thats what makes me think it's a stuck or...

More info. the brake system is aired up at the moment rear pads (shoes) are off the drums. Also , I noticed that my spring brake "knob" has no affect on the brakes, in or out the brake shoes don't move . Doesn't the Spring Brake Control knob release the air holding the rear brake springs back...

another break question I have a brake question (my truck is a M923) and not sure how to post it without starting a new thread (which somebody on this board suggested not to do). My first question is with the knob (Spring Brake Emergency Control), from what I've read this knob needs to be pulled...