What Are the Tie Rods in My Vehicle?

Quick facts

  • Each tie rod has an inner and outer end that together transmit steering force to the wheel.
  • The outer tie rod end includes an adjusting sleeve used to set wheel alignment angles.
  • A completely failed tie rod end results in total loss of steering control.
  • Tie rod ends should be inspected at every oil change service.

What is a tie rod?

The tie rod is a part of the steering mechanism in a vehicle. A tie rod consists of an inner and outer end. The tie rod transmits force from the steering center link or rack gear to the steering knuckle. This will cause the wheel to turn. The outer tie rod end connects with an adjusting sleeve, which allows the length of the tie rod to be adjustable. This adjustment is used to set a vehicle's alignment angle.

What happens when tie rod ends get worn?

Tie rod ends should be regularly inspected with each oil change service, by a qualified technician. They are a wearing part of the steering and suspension system of your vehicle. As tie rod ends wear, they can become loose and can develop excessive slack, or play, which can be felt in the steering and handling of the vehicle. Bad tie rod ends can negatively impact a vehicle's front-end alignment and lead to excessive tire wear and front suspension problems. Tie rod ends are critical to maintaining proper vehicle front suspension alignment.

Signs of a bad tie rod end

The most common signs of bad tie rod ends are: vehicle pulling to one side during operation, uneven tire wear, shaking, vibration, looseness, or a wandering or erratic feel to the steering of the vehicle, and squeaking noises coming from the front end of the vehicle.

If a tie rod end fails completely, a driver will lose the ability to steer and control the vehicle. Regular inspections of the tie rod ends and replacing them when it is either advised or as symptoms start to occur is recommended. It is also recommended to have an alignment performed or at least checked once these parts are replaced.

Frequently asked questions

Common questions

Why do tie rod ends need to be replaced in pairs?

While it is technically possible to replace only the failed side, technicians often recommend replacing both outer ends at the same time. If one has worn to the point of failure, the other has experienced the same mileage and stress. Replacing both avoids a repeat alignment charge and a return visit in short order.

How does a worn tie rod end affect my alignment?

Tie rod end length determines the toe angle of the front wheels. As the joint wears and develops play, that angle shifts unpredictably, causing the vehicle to pull to one side and wear the inside or outside edge of the front tires faster than the center. An alignment performed before the worn end is replaced will not hold because the loose joint continues to shift.

Can I drive on a worn tie rod end?

Mild looseness may produce only vague or wandering steering for a period, but the joint can fail without further warning. When it does, you lose the ability to steer that corner of the car entirely. Tie rod end wear should be addressed as soon as it is confirmed, not deferred.

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