How to Tell If You Have Faulty CV Joints
Posted on: 17 April 2020
Motor vehicles today are either front-wheel drive or all-wheel drive, and they rely on a sophisticated system to transfer power from static components to active wheels. In other words, special parts have been designed that allow power to be transferred from the engine and transmission to the wheels, no matter whether that wheel is turning inward, outward or floating. Sometimes, these components will start to play up, and you will need to change or repair them. However, how do you know when the problem is evident?
Transferring Power Correctly
For the power to be transferred correctly, a small rod known as a CV axle is suspended in between two variables joints. These joints allow the axle to turn no matter the position of the road wheel, and they are typically protected by a rubber boot or sheath at each end. Each CV joint is specially designed to manoeuvre through a range of different positions while allowing the axle to do its work.
Signs of Trouble
You will typically know that something is going wrong when you turn the steering wheel hard to one side and hear a strange noise. As the wheel turns, it may be accompanied by a rhythmic, clicking sound, and this indicates that one or both of the CV joints on that side are faulty.
You may also notice that the vehicle tends to vibrate, even when you are driving over a smooth surface. This tells you that the axle is now out of balance. Typically, the vibration will get worse as you accelerate and taper off as you slow down.
Having a Look
You can have a closer look if you park the car and turn the wheel all the way over to one side. Look in behind the tyre and wheel assembly, and you will see the CV axle together with the joints. If you notice that there is some grease around the edge of the rubber boot, then this is a sign that the CV joint is in need of repair. If the situation is particularly bad, then the grease may have found its way onto the inside of the wheel rim as well.
Taking Action
Don't delay if you come across this issue, as it will invariably get worse and eventually fail. Take the vehicle in for car repairs, and the mechanic will have a look at the condition of the other CV joints at the same time.
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