When Do You Need New CV Joints and Boots?

CV Joints and Boots

The constant velocity joints and boots are parts in the CV axle shaft assembly. On modern cars, CV axles transfer power to the wheels from the transmission and differential. A joint is a critical part of the assembly, and the boot is designed to protect the joint from damage and debris. When a CV joint fails, it must be replaced at a qualified auto repair shop. Also, boots must be replaced when they are bad.

Signs of CV Joint Problems

If you are not sure what to look for, it can be hard to determine if you have a bad CV joint by looking at it under your car. However, an auto repair specialist can help. There may be five signs that you need a new CV joint.

Tire Grease

Damage to CV joints may be evident if there is grease on tire edges. The grease is usually near a tiny tear or crack. However, a significant amount of grease on the wheel's interior or rim could indicate a CV joint with severe damage.


Your car may feel bouncy when you drive on a flat road with a bad CV joint. Take it to an auto repair shop if this happens.


If you notice that your vehicle vibrates when you speed up, it could be from a bad CV joint. The joint cannot maintain proper balance, and this problem is more noticeable when you drive faster.


Too much use of a CV joint will cause it to wear and create a knocking sound. The sound is most evident when you accelerate, decelerate and accelerate again. Try speeding up and slowing down several times to see if the knocking sound gets louder, which indicates a bad CV joint.


It is also possible that your CV joint is bad if you notice clicking sounds when you turn. Clicking sounds usually mean that CV joints are broken. You may notice the clicking or popping sound when you do the following:

  • Put the vehicle in reverse.
  • Turn the wheel completely in one direction.
  • Press the gas pedal.

Is It Safe to Drive With Bad CV Joints?

If you notice any of the previous five problems, do not ignore them or let them get worse. Damaged CV joints can deteriorate fast while you are driving, which can cause them to fail and make your car inoperable. For your own safety and the safety of other motorists, take your car to an auto repair shop immediately if you suspect that the CV joints or boots may be bad. The auto repair technicians can give you a time estimate for how long it will take to replace the parts, which can vary with different makes and models.

How Long Do CV Joints and Boots Last?

The CV boots that protect joints typically last about 80,000 miles. If your car reaches this point, visit an auto repair shop to have them inspected. In some cases, CV joints can last 250,000 miles or more if they are properly protected. An auto repair specialist can inspect them to see if there is any damage.

If you suspect that you have bad CV joints or boots, please contact us. Our auto repair technicians can inspect your vehicle and give you a competitive estimate on parts and labor.