My '07 Ridgeline has had spongy brakes for some time. I have replaced the master cylinder, along with a brake fluid flush, with little improvement. I recently put in new rotors and pads on the rear. When I got to the front, I found that the rotors look fine and there is minimal wear on the front pads, although they were installed at least 40K miles ago. The truck does not stop well, and I cannot actually lock up the brakes. No warning or "check engine" type lights. I am getting a light rubbing sound from the front when the car is cold, which I thought was the wear sensors, but then again, the pads seem almost like new. I am reaching the conclusion that the truck is functioning, essentially, with no front brakes. Ideas? It seems unlikely that both calipers would freeze up or otherwise simultaneously fail to function. I am starting to wonder if it could be the ABS modulator not letting pressure through to the front brakes, although I cannot find anything on line that suggests this is a problem and, once again, I am not getting any codes or warning lights.