Making grinding noise when you step on brakes

GINAPROV

MEMBER
2006 BUICK TERRAZA
151,000 MILES

When you step on the brakes they make a grinding noise (just replaced brake pads in April), traction control turns on when turning a corner and abs/traction control/stability light comes on randomly. Have replaced hub bearings and sensors in front. None of this has cleared the problem.

5 Replies

HMAC300

MECHANIC
48,601 POSTS

Scan for codes on abs if light is on then check for rust on brake rotors sometimes that causes it.

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Friday, August 23rd, 2013 AT 12:10 PM

GINAPROV

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3 POSTS

Have tried both of those, have replaced sensor 2 in hub bearing

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Friday, August 23rd, 2013 AT 12:12 PM

HMAC300

MECHANIC
48,601 POSTS

If it's still coming on then it needs rescanning it may be something else. Check for rust on other side and have brakes checked if grinding when applied.

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Friday, August 23rd, 2013 AT 12:27 PM

GINAPROV

MEMBER
3 POSTS

They just put a scan on it yesterday and nothing came up, the took all 4 wheels off and can not find anything, brake pads still good also

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Friday, August 23rd, 2013 AT 12:30 PM

HMAC300

MECHANIC
48,601 POSTS

Is there something plugged into the aldl at the lh bottom of dash? If there is that may be the cause of your problem with the light coming on otherwise it's an intermittent problem and unless they can bring something up on freeze frame while doing it then it will be hard to find. If there is something plugged in as that can cause it as well. Still check for rust. If the pads were replaced and rotors were not turned then sand down both sides and or have rotors turned or replaced. This could also be maybe parking brake adjusted to tight. Other than that I have no other suggestions.