NHTSA Complaint #10420885 — 2006 FORD F-250 SD

UNCONTROLLABLE WHEEL SHIMMY AT SPEEDS FROM 35 - 65 MPH. THE FAILURE CAN BE REPLICATED AT WILL. PREVIOUS INVESTIGATION FOR THIS PROBLEM STOPPED AT A TIRE PRESSURE PROBLEM BUT THIS IS NOT THE CASE. NEW TIRES, PROPER PRESSURE, BALANCED, ROTATED DOES NOT CHANGE THE CONDITION. POOR AIR PRESSURE MAINTENANCE BY VEHICLE OWNERS WAS NOT THE CORRECT DIAGNOSIS OF THIS PROBLEM. THE WHEEL SHIMMY IS A COMMON PROBLEM WITH THESE TRUCKS AND NEEDS TO BE INVESTIGATED FURTHER. IT IS VERY DANGEROUS AND UNPREDICTABLE. THE WHEEL SHIMMY WILL NOT STOP UNTIL THE VEHICLE HAS ALMOST COME TO A COMPLETE STOP. LOSS OF CONTROL AND BECOMING A TRAFFIC HAZARD IS A POTENTIAL LIFE THREATENING EVENT FOR THE DRIVER, PASSENGERS AND SURROUNDING VEHICLES. THERE IS AN APPARENT FIX FOR THIS PROBLEM BY AN AFTER MARKET COMPANY BUT THE EXPENSE OF ABOUT $1000 FOR THE OEM REPAIR IS NOT ACCEPTABLE FOR WHAT APPEARS TO BE A MANUFACTURER DESIGN PROBLEM. *TR