Symptoms of a Bad or Failing Axle CV Shaft Assembly

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Constant velocity (CV) axles are a drivetrain component commonly found on many modern road-going vehicles. They serve the purpose of transferring power from the vehicle’s transmission and differential to the wheels to drive the vehicle forward. They have a greased flexible joint that allows the axle to flex according to road conditions, with minimal effect on power delivery.

The joint is lubricated with grease and covered by a rubber boot that protects it from dirt and debris. Because the CV axles are the direct link that transfers the power of the engine to the wheels, they are subject to high levels of stress over time and will eventually wear out and require replacement for proper functionality to return. When they do wear out, the CV axles will usually show symptoms to let the driver know they require attention.

1. Loud clicking noises when turning or accelerating

One of the most common and noticeable symptoms of a bad or failing CV axle shaft assembly is an audible clicking noise when turning or accelerating. When CV axles become excessively worn, the constant velocity joints will become loose and click when turning or accelerating. The clicks may become louder or more pronounced during sharper and faster turns and will be heard on the side with the faulty CV shaft. Alongside popping noises, you may also have a hard time steering while making turns and rounding corners.

2. Grease on edge of the tire

Another symptom of a problem with the CV axle shafts is grease on the inside edge of the tire or along the underside of the vehicle. A torn or cracked CV boot will leak grease that ends up tossed around while the axle turns. A leaky boot will eventually lead to CV joint failure, as dirt and debris will get into the boot and damage the joint. Should enough grease leak out, you may notice a growling noise from a lack of lubricant, as well as a steady knocking when driving at low speeds.

3. Excessive vibration while driving

Excessive vibrations while driving is another symptom of a bad CV axle. If a CV joint or axle shaft is damaged in any way that affects its balance while rotating, it will cause the shaft to vibrate excessively while operating the vehicle. The vibrations may oscillate, or become more pronounced as vehicle speed increases. Excessive vibration from failing CV shafts can interfere with handling and ride characteristics, and the overall safety and comfort of the vehicle. Usually, the CV axle will need to be replaced if it is damaged enough to cause vibrations.

CV axles serve as the final link between the engine and the wheels. They serve the important function of transferring the torque from the drivetrain to the vehicle’s wheels in order to move the vehicle. If you suspect that one or more of your CV axle shafts may be having a problem, contact a technician to inspect the vehicle. They will be able to replace the CV axle for you and make any other repairs as needed.


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Joseph

32 years of experience
540 reviews
Joseph
32 years of experience
Chevrolet Corvette - Check Brake, Steering and Suspension System - Allen, Texas
Good first meeting.
Hyundai Azera - Check Brake, Steering and Suspension System - Dallas, Texas
Joseph discovered my initial concerns were incorrect and found the real problem quickly.

Brandon

19 years of experience
773 reviews
Brandon
19 years of experience
Chevrolet Malibu - Check Brake, Steering and Suspension System - Sanford, Florida
He was on time and very knowledgeable. Great experience.
Dodge Stratus - Check Brake, Steering and Suspension System - Altamonte Springs, Florida
My car was immobile with a broken ball joint, and axle, and it was such a relief having Brandon come and get us moving again. He was kind and clearly showed me the parts that were in disrepair. Next time I need a mechanic, I won't be wasting time bringing it to the shop. This first time customer is extremely satisfied. Thanks Brandon!

Patrick

32 years of experience
1062 reviews
Patrick
32 years of experience
Honda Pilot - Check Brake, Steering and Suspension System - Buda, Texas
Patrick was great.
Nissan Altima - Check Brake, Steering and Suspension System - Austin, Texas
Patrick was on time, efficient, helpful, and informative. He did not make repairs to my vehicle that were not needed (I only needed a brake flush not entirely new rotors and discs). Appreciate for his service and expertise!

Emmette

35 years of experience
282 reviews
Emmette
35 years of experience
Ford Falcon - Check Brake, Steering and Suspension System - Manassas, Virginia
Excellent worker and very knowledgeable.
Mercedes-Benz E350 - Check Brake, Steering and Suspension System - Woodbridge, Virginia
He was very timely, early actually and very thorough. I will be using him to fix the issue with my car as well. Very pleased.

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