Rick's Free Auto Repair Advice

CV joint symptoms

Failing CV joint symptoms

CV joints usually fail after the rubber boot is damaged. The boot allows the CV joint to flex in turns while still retaining all the lubricating grease. However, once the boot wears and leaks or is torn, the spinning axle shaft flings all the grease out of the joint and road grit can enter. Between the lack of lubrication and the influx of grit, the joint doesn’t stand a chance. It wears out quickly and fails. Here are the failing CV joint symptoms

1) A torn CV boot will fling grease onto the tire and in a circular pattern around the joint. That’s the first sign of CV joint failure

inboard cv joint with torn boot

2) A failing CV joint makes a clicking sound in sharp turns at low speeds

Without any grease, the ball bearing and lands wear. When you’re in a sharp turn the worn parts will make a repeating clicking sound. Once a joint starts clicking, the wear will accelerate rapidly

3) A bad CV joint can cause a knocking/clunking noise

You hear a knock or clunk sound when you shift into drive and the transmission transfer torque to the drive shaft. Then you’ll hear a knocking sound as you take off from a stop or it may be worse in reverse. The sound will be rhythmic since the play in the joint will repeat with each revolution.

4) CV joint vibration at higher speeds

A worn CV joint can cause vibration at higher speed due to the fact that the joint is out-of-balance due to wear. The vibration can feel like a tire imbalance or even a bad tire. But the one thing that’s different is that the vibration will change when you accelerate or decelerate as the torque changes affect the worn parts differently.

inner cv joint, outer cv joint

©, 2021 Rick Muscoplat

Posted on by Rick Muscoplat


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