[beebon619]

I have had this weird noise for some time now after replacing both my back rotors. When I drive and brake slowly i.e coming to a stop, the noise would be louder.

 

[Pnut00]

Sounds like maybe the rotor is hitting the caliper or bracket.

 

[beebon619]

Sounds like maybe the rotor is hitting the caliper or bracket.

Not the thump thump noise but the whir whir noise.

 

[Piggity]

There seems to be a lot of issues with rear rotors not fitting right on our cars. I see it a lot on Facebook, as well as my experience as well.

I got some used cross drilled rotors a while back for super cheap but had to spend a considerable time trying to identify why they were grinding (or whir whirring) on the backing plate. I eventually grinded down the backing plate or dust shield closest to the rotor, I used an angle grinder with a flap wheel. I haven't had the noise since.

In your case though, it might be the internal parking brake hardware inside the rotor.

 

[Rockhard]

There seems to be a lot of issues with rear rotors not fitting right on our cars. I see it a lot on Facebook, as well as my experience as well.

I got some used cross drilled rotors a while back for super cheap but had to spend a considerable time trying to identify why they were grinding (or whir whirring) on the backing plate. I eventually grinded down the backing plate or dust shield closest to the rotor, I used an angle grinder with a flap wheel. I haven't had the noise since.

In your case though, it might be the internal parking brake hardware inside the rotor.

Had the same exact issue recently with PowerStop rotors. Took quite a while to narrow down the noise because once the wheel is off and the rotors aren't "torqued" to the hub the noise goes away. I definitely used quite a few choice words while troubleshooting the issue, lol.

 

[beebon619]

There seems to be a lot of issues with rear rotors not fitting right on our cars. I see it a lot on Facebook, as well as my experience as well.

I got some used cross drilled rotors a while back for super cheap but had to spend a considerable time trying to identify why they were grinding (or whir whirring) on the backing plate. I eventually grinded down the backing plate or dust shield closest to the rotor, I used an angle grinder with a flap wheel. I haven't had the noise since.

In your case though, it might be the internal parking brake hardware inside the rotor.

Might be the parking brake hardware. I messed up in not turning the star adjuster and just released the parking brake when taking the rear rotors off.