Grinding sound

[Gloves88]

I have a grinding sound that seems to be coming from the front left of the car....

It only happens on full lock...I've gone through the search and I'm going to take a guess at CV joint?? 

I thought cv joints cause a knocking sound on full lock not a grinding sound though? (It sounds like I'm driving over a plastic bottle on full lock)

Can anyone offer some thoughts....

[Ben Lessani]

At speed or slowly, or both? Sounds awefully like a CV joint, wheel bearings tend not to make much noise on low speed manouvering, so it rules that out. There isn't much else that rotates that's attached to the wheels. Check the condition of the CV boots - might find a split one, would be a telltale sign.


Just posted this on another thread too

Knocking at the front could be a few things. Make sure the suspension strut bolts are tight, all 4 ball joint bolts, wheel nuts and hub nut.

Track rod ends
When you hear a knock when wiggling the steering wheel when stationary. If the car is jacked up, its not as obvious to find.

Wheel bearing
Turn a corner at speed (40 mph), if you are turning left and you hear a noise - its the right wheel bearing, turning right and its your left wheel bearing.

Jack the car up, grab it left and right and wiggle it and check for play. If there's play and a noise as above, odds are its a wheel bearing.


Ball Joint
Grab the wheel top and bottom and wiggle, have a friend with a torch look at the ball joint when wiggling and the play is pretty obvious.

CV Joint
Knocking/grinding at low speeds

Top Mounts
No idea, I guess I'd find out by process of elimination from the above?

[Gloves88]

Its only at low speeds....yeah it was that reply that made me start looking into CV joints but no other search result mentioned anything other than knocking associated with it.....

[sidecarphil]

tyre catching the inner arch

[DarnPB]

Sounds like a CV to me! An irregular clicking noise? CV!