I have a 1991 ford escort gt 1.8L (150,000miles) and I recently change the brakes, calipers, and rotors. Then the brakes, rotors, calipers, and rims got really hot. I was told it was the calipers seizing up, so I returned the rotors, and calipers, and got new ones. So then I put everything back on, bled the brakes, and master cylender till all the air was out, and now its getting hot again. What could be my problem?