I took off the brake master cylinder because it was only grabbing the brakes in the rear(it never dived to the front and was harder/slower to stop), which every other time that happened in the 20 plus years I have owned this truck, that meant the MC was bad.
Thanks for the replies everyone.
I took the proportion valve off and took it apart as much as possible and cleaned it up, gave it a brake clean bath.
Re-assembled everything... went to bleed brakes, saw brake fluid shooting out of the brake line onto the exhaust manifold.
Hmnn, that seems like a problem.
So, new brake line, new brake union fitting in place... will double check it all tomorrow and trying bleeding the brakes again.
-Woogeroo
