A repeated click or knock while turning tightly is commonly associated with an outer constant-velocity joint. The pattern of the noise matters: a rapid series of clicks under power on full or near-full steering lock is more suggestive than a single knock.
What a CV joint does
The joint allows the driveshaft to transmit torque while the wheel moves with the suspension and changes angle during steering. It operates in grease and is protected by a flexible boot.
How failure develops
A split boot lets grease escape and road dirt enter. If found early, a boot may be replaced before the joint is damaged. Once the hardened surfaces inside the joint wear, adding grease will not remove the play.
Inner and outer joint symptoms differ
Outer joints more often click on turns. Inner joints can cause vibration or shudder under acceleration, sometimes at a particular speed or load. Driveshaft imbalance, engine mounts and wheel-related faults can produce similar sensations, so the entire assembly should be inspected.
Can it be driven?
A mildly noisy joint may continue working for some time, but its remaining life cannot be predicted accurately. Increasing noise, vibration or obvious play means the repair should not be delayed. A joint that fails completely can leave the vehicle unable to drive and may damage nearby components.
Our driveshaft and CV-joint service in Ruislip covers inspection, boots, joints and complete shaft replacement where appropriate.
Still not sure what is causing the problem?
Symptoms can overlap between several faults. A proper inspection and diagnostic process is usually cheaper than replacing parts based on guesswork.