What did you do to your truck today?

[1963c-10]

Originally Posted by markeb01

I've had that happen a few times as well. In my experience it turned out to be the rubber flex hoses, especially the one in the rear. Front hoses seem to be replaced every now and then but the rear hose almost never for some reason. The hoses deteriorate from the inside out, and when they get bad enough they can swell up absorbing some of the pressure meant to reach the wheel cylinders.

I replaced that hose.....around 2 years ago, but for another $20 i'll get another why the brake system is open.