After driving for about 10 minutes, my car begins squeeking from the left-front wheel. Acceleration/deceleration does not seem to matter, and neither does turning the wheel, except that the squeak increases frequency with speed. Tapping the brakes immediately stops the squeak. Left foot braking while maintaing speed = no noise.

I replaced pads and rotors on all 4 corners approximately 10k miles ago. Tonight, I pulled the pads and re-greased all of the shims. I also removed and cleaned the caliper braket and pad clips. This did not cure the problem. The rotors look good on both sides, and the pads are wearing evenly -- with plenty of pad left before the wear indicator. With the wheel removed, the rotor spins freely without squeaking (with or without the pads & calpier installed).

My only thought now is that I have a pad that is sticking. How can I check for this? Any other ideas?

Thanks!

 

Wheel bearings?

 

bearings will not make this noise.


Did you break the pads in properly? This is how I do it. 1st from 40mile per hour lite brake pressure 4 times till you come down to about 15mile per hour then drive it 10 minutes no brakes let them cool then again 4 times from 40 miles per hour will hard brake pressure drive the car 15 minute no brake to cool and let them sit over night is the best way.

Now that you have them on the only way to do the is to scuff the rotor with a dye grinder making a cross hash clean the rotor with brake clean and try doing to above again. Hope this helps.

 

Yes, I broke the pads in properly.

 

OEM pads or aftermarket replacements (which may have different chamfer or groove and are not thoroughbred pads)?

Another stab at it: replace braking fluid? (If you haven't already)


Siepel

 

OEM pads and rotors. The fluid was replaced at the same time as the pads.

 

It would appear to be the pads. I pulled them and introduced the surface of the friction material to Mr. Benchgrinder. After re-bedding them, no more noise. One thing I did notice is a crack right in the middle of both the inboard and outboard pad that goes all the way to the backing plate. I'm going to go ahead an replace the pads, despite fixing the noise (for now).

 

strange... and good luck in the future.

 

If there are cracked that is the problem

 

But why did they carck?

Have you painted your calipers? Perhaps you have paint on dynamic surfaces. Both inner and outer pads are cracked exactly in the middle. My guess is excess caliper paint which has squeezed the steel guide shims.

So are the calipers painted ?

Utah