CV Joint (Constant Velocity Joint)
A CV joint lets a driveshaft transmit power at a constant speed while the wheel steers and the suspension moves.
What is CV Joint (Constant Velocity Joint)?
Front-wheel-drive cars have an outer and inner CV joint on each driveshaft. Each joint is packed with grease and protected by a rubber boot. Inner joints usually allow the shaft to slide in and out as the suspension moves.
How it works
Balls or rollers in grooves allow the joint to bend while keeping the speed of input and output equal.
Why it matters for your car
A torn boot lets dirt in and grease out. Clicking when turning sharply is a typical sign of a worn outer joint. Replacing a torn boot early, with fresh grease, can save the joint.
Other terms
- A/C Recharge (Air Conditioning Service)
- ABS Reluctor Ring (Tone Ring)
- Alloy Wheel
- Camshaft Position Sensor
- Centre Console
- Charging Losses
- Clear Coat Failure (Lacquer Peel)
- Cold Start
- Connector Corrosion
- Dual-mass Flywheel
- Emergency Stop
- New Car Warranty
- Recovery Points
- Rev Limiter
- Rod Knock (Big-end Knock)
- Shock Absorber
- Speed Rating
- Suspension Bushing
- Tappet Noise (Lifter Tick)
- Turbocharger