1999 Toyota 4 Runner

BRAKES VIBRATE BADLY BUT ONLY ONCE IN A WHILE. AFTER COMING TO A COMPLETE STOP THE REAR AXLE OR REAR END CLUNKS BADLY WHEN RELEASING THE BRAKES, TIRE HAVE CUPPED PREMATURELY EVEN THOUGH BALANCED AND ALIGNED, GAS GAUGE WORKS MOST OF THE TIME BUT SOMETIMES IS INCORRECT BY AS MUCH AS 50%. ABS KICKS IN EVEN WHEN ON DRY PAVEMENT. *AK( DOT NUMBER: W@HH TIRE SIZE: P225/75R15 )

THIS IS AN INTERMITTENT PROBLEM THAT DURING BRAKING AT VARIOUS SPEEDS ON VARYING ROADS SURFACES AND HILLS THE FRONT END OF THE VEHICLE SHAKES TO THE POINT IT FEELS AS IF THE DRIVER MAY LOSE CONTROL. AUGUST 1999 TOOK TO AUBURN TOYOTA AND THEY STATED FRONT ROTORS WERE EXTREMELY WARPED AND WERE REPLACED. THE PROBLEM CONTINUED FIRST BEING NOTICED THE NEXT DAY. AGAIN IN NOVEMBER 1999 THE VEHICLE WAS TAKEN TO SERVICE, THIS TIME THEY COULD FIND NOTHING WRONG. AGAIN THIS PROBLEM IS INTERMITTENT--YOU COULD LITERALLY BRAKE FEEL THE VIBRATION, LET OFF, APPLY THE BRAKES AGAIN AND FEEL NO VIBRATION. OTHER TIMES IT MAY BE A LITTLE MORE PERSISTENT. MOST OF THE TIME THE BRAKE SYSTEM SEEMS TO FUNCTION NORMALLY, BUT AT TIMES THE FRONTEND VIBRATES SOMETHING FIERCE. THAT ALSO VARIES. SOMETIMES IT IS A SLIGHT VIBRATION, AND OTHER TIMES IT VIBRATES UP THROUGH THE STEERING WHEEL QUITE SEVERELY. THE SIMPLE ANSWER FROM TOYOTA IS IT MUST BE THE ROTORS OR WE COULDN'T DUPLICATE THE PROBLEM. MY CONCERN IS THAT WE ARRIVE AT A MORE UNDERSTANDABLE EXPLANATION AND HOPEFULLY A SOLUTION. CAN ABS CREATE A VIBRATION IF THE SYSTEM IS NOT PULSATING LIKE IT SHOULD? *AK