A CV joint is what connects your drive shaft to your car’s wheel, as well as the driveshaft to the transmission. As you drive down the road, these joints allow the wheels to turn left and right, allowing you to make turns without skidding or sliding out of control. CV joints are found in front-wheel drive and all-wheel drive vehicles and perform similar functions. While CV joint failure is relatively rare, it can be a significant repair if not fixed promptly. Here is all you need to know about CV joints and what to look for if there’s a problem.
What are CV Joints?
All front-wheel drive vehicles have Constant Velocity or CV joints. These components consist of an inner and outer joint packed in grease and contained inside a flexible rubber boot. This boot protects the CV joint from damage and is where most problems with CV joints originate. The CV joints are necessary to supply constant power to the wheels while accommodating the motion of the suspension while driving.
Different Types of CV Joints
Two types of CV joints are found on cars: ball-type and tripod-type. Ball-type CV joints are used on the outside CV joint, which connects the wheel to the drive shaft. Tripod-type CV joints are primarily used for the inside joints which connect the drive shaft to the transmission.
How do I Know if There’s a Problem?
CV joints are remarkably durable and typically do not need maintenance or repairs. However, if the rubber boot that protects the joint becomes cracked or damaged, dirt and debris can get into the joint, and grease can leak out. The most significant sign of a leaking CV joint is a trail of grease on the inside of the front tire(s). In addition, you may hear a popping sound when turning or side-to-side shaking while driving.
What to do if My Car’s CV Joint is Damaged?
Once you notice signs of a damaged or failed CV joint, you must bring your vehicle to a professional as soon as possible. Driving on a damaged CV joint for a prolonged time could lead to the joint disintegrating while driving, which could be dangerous. Fortunately, if the CV joint boot is damaged and caught early enough, your mechanic can replace the rubber boot and repack the joint. This is an easier and less expensive repair than replacing the CV joint, which can be costly.
If you notice signs of CV joint failure, do not ignore them. Instead, see your auto care specialist as soon as possible to get this vital component fixed and your car back on the road.