WAS APPROACHING A RED TRAFFIC SIGNAL, COASTING IN CASE THE LIGHT TURNED GREEN BEFORE THE NEED TO STOP. LIGHT WAS STILL RED, SO I STEPPED LIGHTLY ON THE BRAKE PEDAL. THE WAS NO SIGN OF BRAKING. I THEN INCREASED PRESSURE ON THE PEDAL, WITH NO BRAKING ACTION. SURPRISED AND CONCERNED, I THEN SET MY LEFT FOOT ON THE BRAKE PEDAL AND PUSHED WITH ALL I HAD WITH BOTH FEET, BUT THERE WAS NO BRAKING ACTION THAT I COULD FEEL. THE TRUCK STOPPED AS IT BUMPED THE VEHICLE IN FRONT OF ME. ENGINE SPEED WAS NORMAL WHEN THE EVENT BEGAN, AND WHEN THE EVENT ENDED. I DID HEAR A RELATIVELY MINOR INCREASE IN ENGINE SPEED DURING THE EVENT. THE BRAKES WORKED PROPERLY BEFORE AND AFTER THE EVENT. ONE ADDITIONAL NOTE. FOR YEARS I HAVE NOTICED A FEW TIMES PER YEAR A MOMENTARY INCREASE IN ENGINE SPEED IMMEDIATELY AFTER STOPPING AT A TRAFFIC SIGNAL. YOU NEVER KNOW WHEN IT WILL HAPPEN. THE SPEED INCREASE IS GREATER THAT AN A/C SPEED PICKUP, BUT LASTS ONLY BRIEFLY, THEN RETURNS TO IDLE. I KEEP MY FOOT ON THE BRAKE PEDAL WITH ENOUGH PRESSURE THAT THE TRUCK DOES NOT MOVE FORWARD. HAD TRUCK TOWED TO DEALER FOLLOWING THE INCIDENT. DEALER FOUND NOTHING WRONG. THEY SPOKE WITH TOYOTA REPS AND WERE TOLD TOYOTA WAS UNAWARE OF ANY PROBLEM. UNABLE TO TRUST THE TRUCK AND HAVING BEEN ADVISED THAT FORD HAD SIMILAR BRAKE FAILURES IN THE PAST CAUSED BY ABS BRAKE ACTUATOR, I PAID THE DEALER TO REPLACE THE ACTUATOR. AFTER SPENDING MORE THAN $1200 FOR REPAIR, I STILL DO NOT KNOW IF THE BRAKES WILL FAIL AGAIN. A BRIEF INTERNET SE