NHTSA Complaint #10064063 — 2003 TOYOTA 4 RUNNER

I CONTINUE TO HAVE A PROBLEM WITH TIRE/STEERING WHEEL VIBRATIONS IN MY 2003 TOYOTA 4-RUNNER SPORT EDITION. THE PROBLEM OCCURS AFTER THE VEHICLE HAS BEEN SITTING OVERNIGHT, OR ALL DAY LONG IN A PARKING GARAGE. THE PULSING AND STEERING WHEEL VIBRATIONS OCCUR BETWEEN 60 AND 65 MPH, DISAPPEAR AT ABOUT 70 MPH AND RESUME AT 65 MPH. AFTER APPROXIMATELY 5 TO 10 MILES THE PROBLEM DISSIPATES. THE DEALER SAYS THE TIRES ARE BALANCED AND ALLIGNED. THE DEALER STATES THE PROBLEM IS CAUSED BY "FIBERGLASS BELTS" IN THE DUNLAP TIRES THAT FORM A "SET." A REGIONAL TIRE CHAIN SPECIALIST STATES THIS IS "NONSENSE." THEY SUGGEST SYMPTOMS AND FACT IT ALWAYS OCCURS AT THE SAME SPEED SUGGESTS IMPROPERLY BALANCED TIRES OR ALLIGNMENT, OR TIRES "OUT OF ROUND," HOWEVER THE FACT THE PROBLEM DISAPPEARS AFTER DRIVING SUGGESTS THESE ARE NOT THE PROBLEM. I UNDERSTAND THE LEXUS VERSION OF THIS VEHICLE HAS A SIMILAR PROBLEM AND AUTO MAGAZINES NOTE A PROBLEM WITH "ENGINE VIBRATIONS.*AK