have rattle when coasting
 

My wifes 97 has a rattle in the front end when she coasts. If you give it gas it stops. If you hit the breaks it stops. i replaced the front rotors and calpers and pads. it went away fror about 20k mi now it is comeing back agian. any sujestions?

it was the master cylinder not putting out enough pressure witch caused the brake pads to rattle kinda weird.