Hope someone can help me out. I've recently replaced the Master cylinder on my truck and I can't get the brakes to work properly. I bench bled the MC, and the entire brake system. The brake pedal travels all the way to the floor and I have almost zero brake pressure. I'm beginning to think I have a faulty MC and I need to get a new one. I can't see any obvious leaks and the reservoir stays full so I'm pretty much at wits end. Any help would be appreciated. Thanks
John