well all of a sudden i went to step on my brake pedal tonight and it did something that it has never done before it almost like crunched and then u could feel something like grinding. it happened once then it was fine for a whiel then happened once more. any idea's what this could be? pads?

 

Do you have ABS breaks?

 

i thought all of the newer GT's had ABS

 

If you have ABS and one of the wheels tried to lock up the pedal will pulsate with you.

 

Did you drop a cheeto down there?

 

sounds normal.. with hard braking in wet conditions my car will do it all the time.

 

Yeah it will do that when you have moisture build up like when the car has been sitting over night.