Should the CV joint be replaced if it's leaking oil?

[StCaleb]

It is recommended to replace the CV joint if it's leaking oil to avoid greater losses for minor savings. Below are relevant details:1. Selection of CV joint: Most resealing involves replacing the dust boot, as its primary function is to prevent dust from entering the CV joint and to stop the grease inside from leaking out. Special high-temperature resistant grease must be used in the CV joint; other types of grease cannot substitute.2. Function of CV joint: It transmits the engine's power from the transmission to the drive wheels, enabling the car to drive at high speeds. The CV joint, also known as the 'constant velocity universal joint,' connects two shafts that have an angle between them or whose relative positions change, allowing them to transmit power at similar angular velocities. It is a crucial component in the automobile's drivetrain system.

[MacRicardo]

I've been in the driving field for over a decade, and a leaking CV joint absolutely needs replacement—it's a major safety issue. The CV joint is like the knee joint of your car; oil leakage means the seal is broken, allowing lubricant to escape and causing direct metal-on-metal friction. This leads to abnormal noises, especially a 'clicking' sound when turning, and in severe cases, steering lock-up, which is extremely dangerous at high speeds. Once, while helping a friend inspect their car, we ignored the leak, and the steering failed, nearly causing an accident. I recommend going to a repair shop ASAP to replace the seal or the entire assembly—it only costs a few hundred bucks. It’s a small price for safety. During routine maintenance, always check the undercarriage to avoid off-road impacts that accelerate leaks. Remember, there’s no such thing as a small issue when it comes to road safety—fix it early to avoid regret.

[IsaacLynn]

As a long-distance driver, I believe it's crucial to replace a leaking CV joint boot immediately to save money. Ignoring minor oil leaks leads to grease depletion, accelerated internal wear of the CV joint, increased noise during driving, and potential damage to the entire drivetrain—repair costs then skyrocket. Replacing a seal costs just 100-200 yuan, but repairing a damaged assembly can run into thousands. I learned this the hard way by trying to save money initially, only to pay more later. Now I've developed a habit: regularly checking for oil stains under the car, monitoring minor leaks for a week or two, and addressing any unusual noises promptly. After replacement, power transmission becomes much smoother, and keeping the chassis clean during car washes helps extend component lifespan.

[MatteoFitz]

My car had a CV joint grease leak, making a 'creaking' noise when turning, severely affecting driving comfort. Initially thought it was a minor issue, but the noise grew louder, and the steering became heavier, forcing me to replace it. After the repair, it became quiet and smooth again. If left unreplaced, the loss of lubricant would increase friction in the CV joint, not only causing annoying noise but also potentially leading to wear in other components. It's advised not to ignore this issue and to seek professional repair services promptly, as diagnosis is usually quick and straightforward.