2006 ISUZU NPR Steering Problems

WHILE DRIVING AT HIGHWAY SPEED, IF YOU HIT A POTHOLE OR SEAM IN A CERTAIN WAY IT SETS IN MOTION WHAT WE CALL THE "DEATH WOBBLE" -- AN UNCONTROLLABLE, VIOLENT SHAKING OF THE FRONT END THAT CAN ONLY BE STOPPED BY SLOWING DOWN DRAMATICALLY (USUALLY BELOW 30 MPH). IT FEELS LIKE SOME SORT OF MECHANICAL HARMONIC FEEDBACK LOOP IS SUDDENLY TRIGGERED IN THE FRONT SUSPENSION THAT INCREASES IN VIOLENCE AND INTENSITY AS LONG AS THE VEHICLE CONTINUES FORWARD. IT FEELS LIKE THE WHOLE TRUCK IS GOING TO FLY APART. I HAVE HAD THE TRUCK INTO AN ISUZU DEALERSHIP MULTIPLE TIMES TO HAVE THIS ADDRESSED WITH NO PERMANENT FIX. THE PROBLEM CAN BE MASKED WITH NEW TIRES BUT IT RETURNS, WELL BEFORE THE TIRES HAVE REACHED WHAT SHOULD BE THE END OF THEIR LIFE. IF YOU GOOGLE "ISUZU DEATH WOBBLE" YOU WILL FIND THAT THIS IS A COMMONLY OBSERVED PROBLEM WITH...

DRIVING VEHICLE OVER 50-55 MPH VEHICLE RANDOMLY STARTS TO VIOLENTLY SHAKE (FRONT END) UNTIL IT IS SLOWED TO APPROXIMATELY 25-30 MPH. USUALLY TRIGGERED BY POTHOLES OR ROAD JOINTS.

THE FRONT CAB OF THE TRUCK STARTS SHAKING LIKE A TIRE FELL OFF. I HAD THE TRUCK TO THE DEALERSHIP A FEW TIMES AND HAVE CHANGED THE TIRES AND OTHER FRONT END PARTS, I'VE CHANGED EVERY PART THAT THE DEALER TOLD ME TO CHANGE AND I'M STILL HAVING THE PROBLEM. I STARTED LOOKING THE PROBLEM UP ONLINE AND FOUND THAT THIS IS A COMMON PROBLEM THAT PEOPLE ARE HAVING AND THEY DON'T KNOW WHAT TO DO TO FIX IT. *TR

THE TRUCK HAS WHAT IS CALLED A "DEATH WOBBLE". AT SPEEDS OVER 55 MPH THE TRUCK WILL SHAKE VIOLENTLY UNTIL IT IS SLOWED TO 15 TO 20 MPH. THE DEALER ACTS AS IF HE HAS NEVER HEARD OF IT BUT THE INTERNET IS FULL OF INCIDENCES AND REPORTS. WE HAVE TWO OF THE TRUCKS AND IT IS THE SAME ON BOTH TRUCKS. *TR