I have a 2014 Mustang GT that has Wilwood's all the way around. They started squealing when coming too a stop so it was recommended by a local shop to replace the rear pads as they were worn. I also just went ahead and had them do the front pads as well. They replaced them with Wilwood's BP10 which is what Wilwood recommended. Anyways, I have the car back now and it's making a groan/moan sound after you release the brakes after they have warmed up. I can't tell if it's coming from the front or back as my loud exhaust is making it difficult to determine. It did not do this with the old pads. It does not do it everytime you release the back, I would say about 50% of the time. The shop said to "break" the pads in for a while and see if it goes away. I've always been told any break noise is bad and it should be check out. The best way I can describe this moan is it sounds like if you are pushing a heavy piece of furniture against a hard floor slowly and it makes a moan/groan sound from the friction. Or if you are driving down the highway and drive over those noise strips they have on the side of the road that makes your tires make that moan sound. I'm not a mechanic so I'm going to have to take this to someone, I guess my concern is if this is normal after a pad change or if something is truely wrong?

 

There is a procedure to "bed" brake pads (not really a break in period). If that procedure wasn't followed by the installer it could be the source of your issues.

 

Yes, They told me they ran the pads threw a heat cycle when they were test driving the vehicle. I would assume that had been done by them. I actually looked on Wilwoods site and had seen the bed in procedure so I also did a run in yesterday to see if that would help. All though local and traffic prohibits doing it exactly the way it's called out, I did as close as I could to what they recommended. Again, That did not solve the issue. One thing is Wilwoods pads do not come with shims, I noticed after the fact they sell these separate. I ordered some yesterday day, Not sure if those will help or not.

 

Sounds like the pads are not releasing when you step off the brake pedal. You can replicate that sound easily by holding light brake pressure and applying a little throttle, just enough to get rolling. If that is the same sound then you've found the source. Never been a big fan of Wilwood brakes as I had them on my 32 and never did really like them.

 

Well I will say this as when I pull into my garage, Basically at idle speed with my foot lightly on the brake, They make the same moan/groan sound only a bit louder since this pad change. Would you assume then the caliper is not fully releasing the pad off the rotor?

 

I'm bringing this back up again. The groaning is now gone, However not the brakes squeal after they heat up and are braking around town. It does it at about 20 mph down to a stop with light to medium pedal pressure. If you push the pedal down hard, The squeal goes away. I've had this to various shops now and have spent an arm and a leg as we've had pad replacements, two rotor replacements that weren't even warped and various inspections. I've about given up with this stupid car and these ****ty Wilwoods. Would I be better off having them take this crap off and put on a powerstop kit? I don't even drive the car anymore because of these noisy brakes and debating just selling it instead of putting more money into the brakes.

 

Put on some Brembos and be done with it. seems excessive to sell the car because of a bad part, that's just me tho. you deal with this every day and im sure your at your wits end. Im chasing a rear end clunk so I know how you feel lol, good luck

 

I doubt I will sell it, Just very aggravating when you have a car you want to drive and don't because it sounds like crap driving around town everytime you hit the brakes. I was thinking about having someone take the Wilwoods off and buying some OEM's from Power Stop: https://www.powerstop.com/product/po...ont%20Calipers

I believe these are the brembo fronts for 14" rotors, They have been rebuilt and powder coated red which is the color I want.

 

Which level of pads did you buy? Racing or Autocross pads tend to brake better but also a cost. That cost is noise. Generally speaking, Ceramics are best for street than most types/brands of semi-metallics becaus they are quieter, low/no dust, and have better bite than Semi's unless the ceramics are super cold, then they take a couple stops to warm up and bite better.

 

Wilwood told me to get the BP10's. I originally wanted to get a ceramic but they told me they didn't make them. Does anyone else make a good ceramic pad that would fit a Wilwood? Would putting brake quite on the back of the BP10's help?