Dodge Sprinter Brake problems by year

2004 Dodge sprinter - the braking system stiffens up (power brake) if I push the pedal hard especially when I back up the vehicle. It's like the booster has frozen solid and the brake pedal can't travel all the way down. If I let the vehicle sit for a while (1 hr) it will get back to normal. This is a repeat incident and started in the first year but I did not pay too much attention since I did not understand what happened and the problem disappeared for a while. But lately is reappearing more frequently. No accident yet. Nothing has been done to correct the failure. The vehicle is out of warranty by now 66,000 miles. I wonder if there are more people experiencing the same. *Tr

- Had brakes on 2003 dodge sprinter checked by local mechanic. Said that there was about 40% brake pad left but the rotors where extremely worn. I am wondering if rotor life goes past the brake life and could be a danger. Dealer said rotors are changed everytime with pad change! *Nm

Since purchasing the vehicle there has been a continuous grinding and vibration with the brakes, which has imperfectly the vehicle's performance. Consumer took vehicle to dealer for service, and the brake pads were replaced twice. However, problem recurred. *Ak replaced 4 rotors in april 2005 and problem still there. When driving slow and applying the brakes there was a loud grinding noise coming from brakes. While driving on the highway and braking vibrations were felt followed by grinding of brakes. *Bf *nm