Front rotors wobble after replacement

JP

Hero Member
Joined
Jan 28, 2007
Messages
765
Points
18
Make
Chevy
Model
Equinox
Year
2015
Miles
65K
Engine
6 cyl.
Put new front rotors and pads on a year ago, worked fine. After about 4 months, I started to get a little steering wheel wobble when braking and put this down to crappy quality rotors. Finally got around to replacing the rotors last night, but now I have a very slight steering wobble all the time. Wobble when braking has improved but has not gone away.

Two caveats:

1) The rotor retaining screw on one side was rusted in and I had to drill off the head and use heat to get it all the way out. Haven't made it to the auto parts store yet to get a new one, but plan on it...and using a dab of anti-seize on it.

2) The brake pads had less than 10K miles of wear on them so I left them in.


Would the absence of the rotor retaining screw cause a wobble? I wouldn't think so.

Should I replace the pads?

It sucks to work on something relatively easy then have it worse off than if I left it alone! :(
 

billr

wrench
Staff member
Joined
Mar 12, 2007
Messages
7,932
Points
63
I gotta run, but short answer is no, I don't think the rotors are the problem
 

JP

Hero Member
Joined
Jan 28, 2007
Messages
765
Points
18
You have a wobble at all speeds and with or without braking?

Hmmm. Sort of. Just drove it again to the parts store and yes, a tiny bit visible when hands off the wheel. Not able to feel or see it with hands on the wheel. On the way back from the parts store, didn't notice it.

Wobble during braking *almost* gone on the way to the parts store, seems to be gone now. DEFINITELY improved with the new rotors.

???
 

JP

Hero Member
Joined
Jan 28, 2007
Messages
765
Points
18
Wobble gone. Now front brakes squeak when backing up when rotors are cold. Any suggestions?
 

grcauto

wrench
Joined
May 29, 2014
Messages
1,456
Points
48
Wobble gone. Now front brakes squeak when backing up when rotors are cold. Any suggestions?
Cold squeaks are not easy to solve. Make sure the pads can slide easily and use a lot of grease.
 

cw41

Hero Member
Joined
Nov 21, 2006
Messages
553
Points
18
Location
Arizona
I've had numerous issues with any brand of new rotors causing pulsating pedal. I recently used the premium autozone rotors and took them to a brake shop to make sure they were true. Both rotors about .008 out inside and out. Warped right out the box. Installed them after turning and no issues. I even got my 30.00 back from autozone, took them the shop receipt to mgr and he gave me the cash. That was a first. Moral to this story, get the rotors checked before installation. I know what others are saying, that this shouldn't be necessary, and you are right. It's just the way things are now. The shop I went to says he see's almost all rotors no matter what brand are not true out of the box. He turns them all.
As far as the squeaking, in my book thats the pad doing it. Try another set or remove them and hit them with 80 grit and a flat surface to knock the glaze off. Just my 2cts, hope it helps you.
 
Top