STEERING SYSTEM RACK AND PINION

What NHTSA is examining

Since opening the preliminary evaluation (pe), odi has received 6 additional complaints.during the pe it was determined multiple failure modes are involved in this matter.the warranty claim rate is high for a steering system concern.the issues reported involve premature wear out at the rack and pinion interface with the inner tie rod end(s), binding and sticking of the steering gear, cracked or broken tie rod ends, sheared rack and pinion assembly bolts, and wear out of the rack and pinion mount bushings.many of the complainants mention steering wonder and loose steering.three of the most recent complaints allege a complete loss of steering due to sheared bolts.odi is upgrading this pe in order to perform a thorough technical analysis of the various system failure allegations and to quantify the effect that these failures have on vehicle control.

Vehicles under investigation