1999 GMC SIERRA — SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP

WHEN BRAKES APPLIED IN PANIC STOP, PEDAL GOES TO FLOOR. THIS ALLOWS INADVERTANT CONTACT WITH ACCELERATOR MOST OF THE TIMES I TRIED TO DUPLICATE THIS AFTER THE ACCIDENT USING RIGHT FOOT TO BRAKE. PRECISE PLACEMENT OF RIGHT FOOT IS NECESSARY FOR ME TO PREVENT THIS( I HAVE TO LOOK DOWN AT MY FOOT TO GET IT WHERE IT WON'T HIT THE ACCELERATOR IN THIS SITUATION). MEASUREMENTS MADE INDICATE THAT WHEN THE BRAKE PEDAL BOTTOMS OUT DUE TO THE PANIC STOP IT TRAVELS ABOUT 1/2" PAST THE ACCELERATOR, ALLOWING CONTACT WITH IT IF YOUR FEET ARE BIG LIKE MINE. THE BRAKE PEDAL WILL NOT TRAVEL FAR ENOUGH TO ALLOW THIS TO HAPPEN DURING NORMAL BRAKING. THIS IS A FOLLOWUP TO ODI#744510. I JUST GOT MY TRUCK OUT OF THE SHOP YESTERDAY AND DUPLICATED THE BRAKING PROBLEMS OF THE ACCIDENT. I MEASURED DISTANCE THAT I HAD TO STOP AT ABOUT 200 FT. DURING THE ACCIDENT AT 40 MPH INITIAL SPEED, I DID NOT STOP AND HIT STOPPED VEHICLE AT ABOUT 10 MPH WHILE APPLYING FULL PEDAL PRESSURE WITH RIGHT FOOT. *AK