Rust on the other side of the rotor?
Sounds like a rust spot.
Sounds like a rust spot.
Agree.Sounds more like you had a deposit of pad material on the rotor and it wore off with your "spirited" braking.
Years ago I read an article from a NASCAR pit mgr (don’t remember who) he said he rarely if ever saw warped rotors, despite drivers telling him otherwise. Problem almost always was pad relatedIn my experience, 'warped rotor' is an over-used indictment that seems accurate in many cases because the path to fixing the rotor likely will incidentally repair the actual cause of the issue...none the wiser. Rusty, sticking pad retaining pins, contaminated or loose-fitting pads, rusty, sticky, jammed pad shims, misaligned or loose parts, bushing or bearing wear...various other things that go unnoticed under the warped rotor umbrella.
It was more likely an ABS glitch, I went through this on my 2012 Vagon, had high speed braking pulsation, had the rotors check, even had them turned. I suspect you are experiencing something similar.Weird. I don't drive the car a lot, sometimes go a week or so without driving it. Earlier this year, after the car had been parked for better than two weeks, when I drove it I had a pulsing in the steering when I applied the brakes. Classic warped rotor feel. Left front, since the steering wheel got tugged lightly to the left with each pulse. Couldn't figure out how a rotor had warped since the previous drive when it wasn't warped was not in the least bit abusive. Did a couple of high speed "stand on it" braking maneuvers on the off chance I had a rough/rust spot from where the pad had been sitting against the rotor while the car wasn't being driven. This did not change the issue at all. So I've been living with it all summer because I don't really drive it a lot and I am too lazy to do the work to fix it. But. Last week I took the car out for a drive and the pulsing was almost nonexistent. Drove it again today and laid on the brakes hard and I can barely feel the problem anymore. It was best characterized as "severe" and now it's "hardly noticeable".
WTF? Warped rotors don't get better by themselves. At least, not in my 40+ years of automotive experience. The outside face of the rotor looks fine.
Anyone have any suggestions as to what's going on?
There is a minimum thickness number indicated on each rotor. As long as you can clean them up and they're not thinner than that, they're good to go.I recently replaced by pads and rotors on my 2016 CTS V and paid premium for GM replacement rotors. After reading Mean Mike response I am glad that I did!
I still have the original rotors and wanted to know if they could be TURNED?
If yes, where could I find someone that has the proper equipment to do this properly?
thanks!There is a minimum thickness number indicated on each rotor. As long as you can clean them up and they're not thinner than that, they're good to go.