Yes, it's in the master cylinder. The pedal comes back to the undepressed position, but it doesn't have any pressure to it until it's almost to the floor. That's what I meant in the post. It can be pumped up a little more by repeatedly pumping it but not near where I think it should be to have decent brakes. It's like there is still some air somewhere in the system even though I have been around and around the truck many times bleeding the brakes at the wheel cylinders. That's why I asked about the MC.
