2015 right rear brake noise?? HELP!!!!!!!!!

[RandyHayes]

Hello, I am in need of help.

My 2015 GT 5.0 is having a right rear brake issue; the issue is it rattles and sounds like it might be sticking. Here is a list of what I have done to fix the issue. I bought the car used and it had a Bear drag racing rear brake kit on it. I'm a track day kind of guy after racing SCCA.
1. Installed OEM replacement calipers and removed Bear brake kit. Went to a track day and it started making noises right rear like the pad was hitting the slots in the disk.
2. Installed new rear pads and bled brakes. Did a quick pad bedding and it was fine. After another track day the noise came back and was worse.
3. Installed a new set of rear calipers (Stoptec) issues went away. Installed Hawk track pads DTC30 and bedded them in, noise came back and is even worse.
4. Installed new bearing package, noise still happens.
5. Installed new knuckle, noise still happens.
6. Just had a new ABS control unit installed and noise still happens.

It makes the noise at low speed, high speed and coasting in neutral; the only time it goes away now is in reverse.

I'm not sure what to throw at it next? Has anyone had this happen and if so, how was it fixed?

Thanks in advance for any help, questions or statements, Randy Hayes

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[horsepower addiction]

Any chance you can provide a video of the noise?

 

[RandyHayes]

 

[RandyHayes]

This was at 20 MPH in neutral coasting.

 

[Timbuck]

Well concidering what you have changed. It sounds like a disc problem , kind of like it’s warped or not running true or a bad miss match of the pad and braking surface. Sometimes this will make your pad bounce in and out off the piston. And BUZZZZZZZ kind of like ABS going nuts.
Does it go away when you lightly brake ??

 

[Timbuck]

Also. How does that disc look when compared to others ? Evan surface , line , groves etc weird pattern on them ?

 

[TonyT930]

Hello, I am in need of help.

My 2015 GT 5.0 is having a right rear brake issue; the issue is it rattles and sounds like it might be sticking. Here is a list of what I have done to fix the issue. I bought the car used and it had a Bear drag racing rear brake kit on it. I'm a track day kind of guy after racing SCCA.
1. Installed OEM replacement calipers and removed Bear brake kit. Went to a track day and it started making noises right rear like the pad was hitting the slots in the disk.
2. Installed new rear pads and bled brakes. Did a quick pad bedding and it was fine. After another track day the noise came back and was worse.
3. Installed a new set of rear calipers (Stoptec) issues went away. Installed Hawk track pads DTC30 and bedded them in, noise came back and is even worse.
4. Installed new bearing package, noise still happens.
5. Installed new knuckle, noise still happens.
6. Just had a new ABS control unit installed and noise still happens.

It makes the noise at low speed, high speed and coasting in neutral; the only time it goes away now is in reverse.

I'm not sure what to throw at it next? Has anyone had this happen and if so, how was it fixed?

Thanks in advance for any help, questions or statements, Randy Hayes

Did you rebleed your abs module?

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