After hearing a grinding noise in the left front wheel whenever starting up a hill from a standing stop, we have finally taken the car to our mechanic. He says the CVJ (Constant Velocity Joint) may be broken, as he can spin one wheel much farther than the other while the car is on the hoist. How common are these types of brakes, and would the car stop dead if the CVJ was bad or broken? What causes this? Thanks
Here's how a CV joint typically goes bad. Each CV has a rubber boot. After time the boots can rip. The purpose of the boot is to keep grease in the joint.
Once you get a rip in the boot it allows water to get into the joint and it eventually damages the it. Usually you will start to hear a clicking noise in that particular wheel when turning. This is the beginning signs of the CV joint going bad. Sometimes you can re-pack the joint with grease, put a new boot on and you're good to go.
In your case however, it may be too late. Once damage has happened to the joint, you need to replace it. This is a pretty typical repair. If you let it go you do risk the chance of the joint breaking and this could cause an accident. I would suggest that you have this repaired. Hope this helps.
〉 Answered on Mar 5th, 2008 by Lori Johnson, Owner and Instructor at Ladies Start Your Engines