Common Signs of a Leaking CV Boot
Constant velocity axles, commonly referred to as CV axles, transfer power from your engine’s transmission to the wheels and propel the vehicle forward. The flexible joint in a CV axle, which accommodates wheel movement, is covered in a rubber boot that is referred to as the CV Boot.
This boot serves as a simple dust cover for the CV joint meant to keep out dust and dirt, and keep in the grease that lubricates the CV joint. This may seem like an obscure part, one that you don’t have to worry about. But CV boots serve a simple but important purpose and allow the CV axles and joints to stay clean and enjoy a long service life. When a CV boot leaks, it can cause the attached joint to become damaged posing a serious safety hazard.
Usually, a problematic CV boot will produce a few symptoms, alerting the driver that service is required: