Just changed the front brake pads of the Disco II (01), after which I took it for a drive to test the brakes and when I returned home noticed that the front wheels were smoking. Of course it was raining in Tampa, so I thought I had just went through a puddle. Also, at 50 mpg the car shakes and then stops after 55 or more. Plus the brakes feel spongy and soft. I then decided to replace the rotors, put it all back together and I am still getting the spongy pedal and left front smoking. Any ideas. Do you think that there might be air in the line as we did unscrew the brake cap in order to squeeze back the calipers?