Tie Rod Ends
Tie Rod Ends are subject to extreme forces as they transfer the rotational force of the Rack & Pinion to the wheel. Severe road shocks and constant vibration can wear the ends of the Tie Rods rapidly. Wear to Tie Rod Ends can be identified by a knocking or clunking noise when turning the wheel. The noise may be worse when driving on uneven road surfaces. The car may also pull to one side when travelling in a straight line. In extreme cases the wear to the ends of the Tie Rods can cause the steering to become loose. Uneven wear to the tires, particularly on the inner or outer edge can also be a sign of worn Tie Rod Ends.
Steering Rack Seals
Steering rack seals, whether they are gaiters or internal seals, are prone to cracking with age. They can also be damaged by heat, and once cracked the seals allow the fluid to leak out. Fluid can leak out of the gaiter or accumulate under the steering rack. This can cause the steering to become very heavy, and can also cause damage to the steering rack in extreme cases. Many steering parts are prone to deterioration should fluid contamination occur and remain undetected.
Power Steering Pump
A failing power steering pump will make a groaning or whining noise when slowly turning a wheel. This noise is often worse when turning fully to lock in a car park. This is due to the pump not having enough lubrication in the fluid, which can cause rapid wear of the internal components.
Steering Column Universal Joints
Universal Joints enable the steering column to change angle as required between the wheel and rack. Over time the grease in the UK can dry out causing problems, particularly after long mileage and lack of servicing. You may detect a vibration or slight resistance which pulses as you turn the steering wheel.
Track Rod End Ball Joints
Track Rod End Ball Joints – The joint is found outboard of the tie rod end. Similar knocking or clunking noises are experienced. Poor road surface is often a cause of failure as dirt & grit enters the joint through a torn dust boot. The ball seat is soon worn away.
A useful reference for Steering Parts is https://westernpowersteering.co.uk/steering-parts/.
Any of these steering failures could lead to MOT failures so it is important to get any steering problems sorted as quickly as possible.
