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Ongoing Brake Squeak/Clunk


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FlanPlan
New User

Jan 13, 2020, 1:13 PM

Post #1 of 7 (463 views)
Ongoing Brake Squeak/Clunk Sign In

Howdy, everybody!

I've been having an issue with my 2002 Mustang GT for quite some time now and I have no idea what else to try at this point.

I have had a constant squeak and a clunk when pressing in the brakes that get worse as you drive it (then seems to stop when you don't drive the car for a while.)

I pin-pointed that the squeak is coming from the back right wheel, and I don't know where the clunk is coming from. I could also feel the car dragging and felt the brake pedal feeling mushy.

I have tried replacing the back right caliper with no luck, I have replaced a front brake line that was collapsing, I have replaced the brake master cylinder, and replaced the front left caliper that was getting stuck.

Replacing the brake master cylinder made the brake pedal feel fantastic, and it seemed as though it made the clunking take longer to start back up again, so I decided to replace the brake pads and rotors. I noticed while replacing the brake pads and rotors that there was a lot of heat damage on the pads themselves, I also noticed something that was somewhat alarming, the hardware on the back pads was on backward AND the rear calipers themselves didn't even have hardware on them (My friend helped me figure this out) I figured that I for SURE was about to fix the issue. All the sounds I was hearing completely stopped... Until about 2 weeks after changing the pads and rotors. Now they are squeaking and I can faintly hear the clunk starting back again. It's only been 2 weeks since I changed the pads and rotors and I'm no longer driving the car until I can figure this out (that way I don't risk damaging the rotors.)

Any clues as to what I can do to fix this? I would really love to keep this car, but it's been such a pain.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jan 13, 2020, 1:37 PM

Post #2 of 7 (453 views)
Re: Ongoing Brake Squeak/Clunk Sign In

This is not a problem you are going to solve online. Replacing brakes may seem like a very simple task but in fact it takes years of experience to know all the pitfalls and tricks that occur doing brakes. Brake squeal can have numerous different causes, most of them reverting back to how they were installed. One of the biggest causes is the brake pads themselves. Certain cars require certain types of pads. Long mileage pads are not usually a good thing.

The other issue is you should NEVER replace only one side of anything brake related. Always replace in pairs



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Jan 13, 2020, 1:47 PM

Post #3 of 7 (447 views)
Re: Ongoing Brake Squeak/Clunk Sign In

What's with finding hardware backwards on the whole list of stuff done seems one wheel at a time not same to each axle is the right thing?


Knowing hardware that could be L to R backwards it helps still (just me sometimes) to see one that isn't all messed with.


The dragging and finding heat scorched evidence has to go is why you are here of course too.


What hose collapsed and how did you diagnose that. Yes, flex hose can allow pressure into a caliper and not back out or one the fees both side if applicable.


About now if all is in question at some point for a real keeper car do it all with quality stuff. Assorted brands never did all match up so perfectly.


Noise/clunk? You should with your hands and a pry of a tool find what can move that shouldn't without too much trouble.


Hard to help it's a bit messed with now isn't the easiest way to know what really is backwards.


Just one that happens while here. Any rotor that hovers of a hub make sure the hub is real free of any dirt, debris or rust. Rotor alone if not setting true to a hub will raise all hell and feel horrible,


T



FlanPlan
New User

Jan 13, 2020, 1:47 PM

Post #4 of 7 (446 views)
Re: Ongoing Brake Squeak/Clunk Sign In


In Reply To
This is not a problem you are going to solve online. Replacing brakes may seem like a very simple task but in fact it takes years of experience to know all the pitfalls and tricks that occur doing brakes. Brake squeal can have numerous different causes, most of them reverting back to how they were installed. One of the biggest causes is the brake pads themselves. Certain cars require certain types of pads. Long mileage pads are not usually a good thing.

The other issue is you should NEVER replace only one side of anything brake related. Always replace in pairs


Yeah, I definitely understand what you're saying. The only reason I even attempted to fix it myself was because the problem started after I took it to a shop to get the pads and rotors changed about 2 years ago. This same shop conveniently could never figure out what they did wrong, but surprisingly enough fired the mechanic that worked on my car. I've been kind of terrified to take it anywhere because a lot of mechanics around here aren't very honest and have terrible reviews.


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Jan 13, 2020, 1:50 PM

Post #5 of 7 (439 views)
Re: Ongoing Brake Squeak/Clunk Sign In

Replies came in fast while I was typing/phone calls etc - sorry. Try to find a really good image of what each bit of hardware is supposed to be like even if a spot on a YouTube like demo.


IDK how you are going to know or me explain what it should look like not knowing how messed up it is where now,


T



Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jan 13, 2020, 1:52 PM

Post #6 of 7 (434 views)
Re: Ongoing Brake Squeak/Clunk Sign In

I feel your pain but you still need to find somebody with a lot of brake experience that knows what to look for and of course is honest.

I'll tell you the truth, most shops you take it to will not want to mess with someone else's work and will want to start all over with their own parts.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



FlanPlan
New User

Jan 13, 2020, 2:01 PM

Post #7 of 7 (430 views)
Re: Ongoing Brake Squeak/Clunk Sign In


In Reply To
Replies came in fast while I was typing/phone calls etc - sorry. Try to find a really good image of what each bit of hardware is supposed to be like even if a spot on a YouTube like demo.


IDK how you are going to know or me explain what it should look like not knowing how messed up it is where now,


T


Before doing the brakes I watched several videos on my car specifically, all of which shown the hardware on the sides of the pads facing differently than the way they were on my car. The calipers themselves on the rear also did not have any hardware in them. After doing this it stopped the sound for a short amount of time, so I'm thinking I'm close to finding the issue.






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