Just replaced the rotors and new pads. The pads are semi metallic. I’ve noticed a brief rubbing sound when coming to a complete stop and when lifting my foot off the brake pedal from a stop. Is this normal for metallic pads?
were the rotors trued before installation?
They were brand new. I wasn’t aware that that was something I had to do. Is that always the case? It doesn’t feel like they are warped.
no you shouldn’t need to, but it’s a possibility and a professional would test it for warping before handing it off to a customer. It’s not a diagnosis, just a possibility: warping of the rotor face. if this is the problem you could take off the offending rotor (should probably check all 4) and examine both with a straightedge against a light all the way around for a definitive diagnosis. correction would involve “truing” on a brake lathe.
Lug nuts are always torqued.
It’s just a sound. Don’t feel anything or notice pulling.
I’ll check the hardware again. I did re-use the shims but greased them up.
To the original question, metallic brakes aren’t just noisy? I know they’re louder than ceramic and organic.
If it’s just a sound, and the brakes are performing otherwise as expected, I’d chalk it up to metallic brakes, especially if the sound were roughly uniform from all corners. I’m not there to hear it, though.
For sure. I only have discs in fro t and it sound like front and back. I’ll see if I can get a recording.
Have you driven enough to bed them in?
How were the calipers when you pushed them back to install the new pads?
Does it pull one way or the other when braking?
Did you remember to grease where the pads move in the caliper?
Yeah def worn them in enough. Hundreds of miles. Even did the 30/50 braking in the beginning.
Calipers are fine. One is new. I pushed them in to fit the new pads over the rotors and they were smooth.
Doesn’t pull when braking.
Yup, greased all the shims and pads where they make contact but I re-used the old shims. You think that would cause it? Never had the problem with the old pads.
What ways are metallic pads noisier than ceramic or organic?
Usually the noisier is just the squeaking when you brake. Reusing the shims might cause the rubbing sound, but it’s hard to say for sure. The rubbing sound is most likely vibration in the brake pad as you come to a complete stop and the pads kicking off of the rotor as you start moving again.
What brand did you get?
It could be normal for those pads to make that noise. If it’s stopping good, the pedal doesn’t feel spongy, and the wear on the rotor and pads look uniform I think you’ll be okay. As long as it doesn’t make a rubbing sound while you’re moving! I’d keep an eye on it just in case. Worst case you spend too much time looking at perfectly good brakes!
Thanks. Yeah all working well. I think it’s the pads. If I barely come off the brakes from a stop I can get it to happen, but then it goes away.
They’re Centric pads and rotors.
