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Hitting your brakes should only cause a 8 to 10psi drop when applied. The dead giveaway should have been the gauge dropping.

There was no mention of air loss with the pedal applied till the video posted today.

Q2 Valve in the front is a culprit most folks have. However a bad brake diaphragm causes air to go by the pancake and it goes our the vent line which Even from the rear axle it still vents to the stack There is a block on the frame rail. Beside the transmission. Drivers side. Has about 5 lies...

DP12 and DP16 at napa or oreilly RB-D-12 and RB-D-16 Service chambers are size 12 hence the DP12. You need 10 of them for the whole truck. Spring Cans have no resistance so you can't cage them. You need 4 of the DP16s for the spring chambers. The caging bolts should be on the spring cans...

Diaphrams FYI you can chock the wheels. Hook an air line from the front emergency gladhand to the front service gladhand and it will engage the brakes for you to find leaks on your own if you have no soldier b

Nothing is shared between right side together. The T that supplies air pressure to the spring brake cans per axle sends pressure equal to both sides. If one side has enough air to release then so does the other. Auto adjusters are probably just sticking and with all the moisture this time of...

When you do your diaphrams go to home depot and get some longer bolts that have full thread so that the clamps pull together easier over having to use channel locks to try to get a few threads to show