bad bushings on the rack mount making it loose hence turning stering wheel will make it loose and bounce
== Have the rack/box pipes been tampered with? Is it manual or Power Steering? Does this happen whilst driving or if the vehicle is stationery? www.powerbrakeandsteering.co.za
If the steering wheel is loose while driving the steering rack may be going bad. A bad steering rack leads to a lot of play on the actual wheel.
It is important to know the causes of bad car performance. In a Toyota Avalon, the symptoms of a bad steering rack are as follows, slips in steering, the car pulling to one side, and the steering wheel bounces up and down while driving.
A rack end is the part of a steering system (rack-and-pinion-steering) that connects a steering rack to the tie rod (track rod/connecting rod) which connects to the wheel. In a simple steering system, there are four parts: steering rod - rack (this is the one that works with the pinion gear) - rack end - tie rod
helm, rudder, rack & pinion, wheel,
It connects the steering rack to the steering arm at the wheel hub.
Excessive noise, shudder in the steering wheel when turning it in either or both directions, leaks. IF YOU CAN TURN YOUR WHEEL LEFT TO RIGHT WITH OUT IT BINDING AND THERE ARE NO LEAKS AT THE RACK THEN MORE THAN LIKELY YOU RACK AND PINION ARE OK
Bad coupling from the steering wheel to the rack & pinion or steering gear. Faulty steering gear
Steering wheels shaking are usually attributed to bad steering racks. The steering rack is unstable and will not be able to safely control the vehicle. It should be replaced.
You can tell that the rack in opinion steering is bad when there is excessive play in the steering will. You might also feel a shimmy in the steering wheel.
Rack and Pinion steering is the most modern type of steering in new vehicles. A "rack" and a "pinion" are two tools in which help the vehicle to turn easier. When you turn the steering wheel in your car, the pinion's gear spins along the rack, allowing your vehicle to turn.
check the power steering rack or the steering pump
Steering wheel Steering shaft Pinion Rack Tie Rod Steering Arm