There will be a part called the CV joint underneath the car of FWD cars (front-wheel drive). This device can connect the transmission to help the wheel move. From there, the vehicle can operate according to the will of the driver.
However, CV joints have a relatively short service life, so they are easy to corrode. Fortunately, when this part has a problem, the car will make an annoying noise. Therefore, you need to pay close attention to the signs to promptly repair to help the vehicle operate for a long time.
So, what is the cause of CV joint noise when driving straight, and is there a way to fix it? Let’s find out why this happens and how to fix it effectively.
What Is CV Joint?
If you are a person with a passion for 4-wheel vehicles, you will probably know CV joints. Almost all cars of the FWD category use this unit. This coupling can also be used in rear-wheel drive vehicles.
The primary role of the CV joint is to connect the two front and rear wheels that are moving smoothly. The movement speed of all 4 wheels is uniform and works continuously. Therefore, this part plays a significant role in modern cars.
However, one disadvantage of this type of joint is that it cannot be used forever. When a certain amount of time is reached, the unit will experience some problems. It would help if you replaced them immediately to ensure your car is always safe.
Causes Of CV Joint Noise When Driving Straight
Things like car temperature gauges going up and down or CV joint noise are prevalent when driving. Here are the reasons why ball joints make annoying noises:
Faulty starter clamp.
Boot clamp has the role of fixing CV boots. This part is quite important because they play the role of preventing impact to the CV joint. In addition, they also help prevent dirt from the outside environment from coming into contact with boots.
Therefore, if this part fails, bacteria or foreign debris will fly into the ball joint, and its ability to function will be hindered. If you don’t find out in time, the CV joint will make noise when you drive in the long run. You need to quickly replace the starter clamp to ensure your car can last for a long time.
Error on startup.
Errors on startup are one of the most common causes. In particular, CV boot (1) holds the essential function of the ball joint. This unit contains oil to lubricate the CV joints while the vehicle is in operation. It will make the wheels move more smoothly.
However, what if a CV boot has problems such as tears or cracks? An oil leak will occur. These fuels will pass directly to the outside and not go to the ball joint. So, when you move the car, the joints have no lubricant and will make an annoying creaking sound.
Lack of lubricating oil.
Lubricating oil has a role in helping joints move smoothly and continuously. These fuels will always flow out to help prolong the life of the components. But, when the CV joint does not have enough oil, the phenomenon of steel rust will appear.
Specifically, the lack of lubricating fuel will cause the friction of the shafts to increase. This phenomenon is what causes the coupling to make noise. Not only that, but the CV axis also cannot rotate freely as before. The wheels will not be able to move evenly, endangering you and those around you.
Used for too long.
All devices have a specific shelf life. And so is the CV joint. When these parts are too old, they will make some noise when you move. This phenomenon is completely normal because it signals that you need to look for a new part.
The Most Effective Way To Fix
Driving in a noisy state will cause a lot of inconveniences. So, to fix this situation, you can do one of the below:
Lubricate the joints.
Lubrication is a job that must be done regularly. Joints work hard, so a product is needed to help them move more smoothly. Therefore, you need to use lubricating oil to enhance the smoothness of the wheels.
When doing this job, make sure your vehicle is in a non running car state. You can then proceed to lubricate the machine and related components. When finished, try starting the car to see if the noise is still there.
If you find that your CV joints are severely damaged, you need to replace them immediately. Phenomena such as corrosion, rust will seriously affect the quality of your vehicle. Therefore, you need to find new parts to install quickly.
However, the coupling is not sold separately, and you have to buy the whole CV shaft set. The replacement is not easy. Therefore, you need to seek the help of experts.
Our advice is that as soon as you find any problem, you need to fix it immediately. Because replacing CV shafts is very expensive, you should not wait until they are severely damaged to find a way to fix them.
CV joint noise is a familiar phenomenon for car owners. So there are many questions related to this topic. Here are some questions that a lot of people care about:
Is it safe to drive CV joint noise?
Depending on the condition of your coupling, the level of safety will vary. If this part is leaking fuel or having some minor problems, you can continue to use your car. However, to be safe, you should quickly repair it as soon as possible.
As for vehicles with broken axles, you can’t drive your car. Because this part is not able to control the wheel to move smoothly. Moving a car with seriously damaged equipment is dangerous to you and those around you.
How long is the service life of CV joints?
As we stated above, CV joints have a relatively short lifespan. Because these parts will have to be used continuously, you need to replace them once the car has reached 150,000 miles.
However, there are some types of higher quality so that the shelf life will be longer. The best way is to maintain your car regularly under the guidance of experts.
Unusual noises are the first signs that tell you that your car is having problems. Therefore, you should pay attention to the regular parts for timely detection and repair.
Paying attention to every little detail of your car will help you solve problems so that your car can last longer. Hopefully, the above article has helped you discover why CV joint noise and how to fix it effectively.