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Here is what happens. When the truck is started the air pressure builds up as it should and levels off. Once you release the parking brake switch on the dash air will come out of the back of the valve block that is at the top of the brake peddle. I cannot see exactly where the air is coming...

Let me start off by saying please forgive my lack of proper terminology. I have a 1983 M977 HEMTT, that I love by the way, that has never giving one bit of trouble. When I hopped into it last time it fired up, but when I released the parking brake air started leaking out from behind the brake...

I have two PCB's that looks totally different that those shown, as well as the diagram. Both of mine have two solenoids, protective diodes on each solenoid, and each has another electronic component that I have no idea yet what they are. One could be a Zener Diode, and the other might be some...

I will check on those suggestions as soon as I can. Hopefully this weekend. I did not run it very much after we jumped it. I had it shipped and we had to jump it to get it off of the trailer. Once on the ground I only drove it maybe a quarter of a mile. It sure was sweet though!

I have some basic and probably pretty dumb questions about my M936A2. This is the first operational military vehicle that I have purchased, I have a M76 Otter but that is another issue :smile:. I just purchased the M936A2 and overall it was in very good shape. The batteries were bad but it...