The truck has been to the dealer 3 times and they could not find a problem and said it was normal even when I said the pedal goes to the floor and does not stop the truck. I had them bleed the brakes and still problem did not improve. I installed new pads on the front and the braking did improve. I am installing EBC disks on all 4 wheels with Yellow pads. I am bleeding the brakes and installing DOT 4 brake fluid and making sure the calipers move freely and are lubricated with the proper grease. If this dosen't improve the brakes I am installing a new master cylinder and installing stainless brake hoses.