Is it necessary to replace the CV joint boot if it's broken?
2 Answers
The CV joint boot must be replaced if it's broken. Once the CV joint boot is damaged, the grease inside the CV joint will be thrown out, and dust and dirt will enter the bearing of the CV joint, causing abnormal wear. In severe cases, it may even lead to the CV joint seizing up. Relevant introduction of the CV joint boot: Material: The material used is thermoplastic elastomer, also known as thermoplastic rubber, which is a polymer alloy material between rubber and thermoplastic plastics, possessing the dual characteristics of both rubber and plastic. Function: The role of the CV joint boot is to encase the grease, preventing it from leaking out and ensuring it stays inside the CV joint. Once the grease inside the CV joint is insufficient, it will cause excessive wear and premature damage to the CV joint. Repairing requires replacing the CV joint, which is costly. Therefore, once any damage or oil leakage is found in the CV joint boot, it must be replaced promptly.
This is no small matter if it breaks. Last time I delayed replacing it and ended up with big trouble. Once the CV joint boot is torn, not only does all the grease get thrown out, but sand and grit also get inside, making grinding noises. At first, I just felt a slight thud when turning, so I thought I could manage for a while. But after two months, I had to replace the entire driveshaft, costing nearly two thousand. If only I had spent two hundred to replace the boot back then, it would have been over. Especially for those who often drive on highways—don’t procrastinate. If sand gets into the universal joint and seizes it, having a wheel suddenly lock up at high speed is no joke.
