Posted on 9/26/2025
The CV (constant velocity) axle in your vehicle is an essential part of the drivetrain. It connects the transmission to the wheels and allows power to transfer while the suspension and steering move. If the CV axle fails, your car won't be able to move, and it often gives clear warning signs before things reach that point. Recognizing these signs early can help you avoid a dangerous breakdown and an expensive tow. Here’s what to look for. What the CV Axle Does The CV axle has joints on either end that allow it to flex and rotate while transferring power. These joints are covered in rubber boots filled with grease to keep the movement smooth and prevent contamination. In front-wheel-drive vehicles, CV axles handle all the driving force. In all-wheel-drive and some rear-wheel-drive vehicles, they’re used at all four corners. Because they’re under constant stress and exposed to road debris, CV axles wear out over time. Once they do, the signs can ... read more