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Discussion Starter · #1 · (Edited)
Thanks to anyone that has suggestions.
I have a 2009 Nitro RT 4x4 that makes a loud creaking/groaning noise when releasing the brakes.
I did a complete brake job by replacing the calipers, rotors and ceramic pads all the way around the car.
I used high end ceramic pads and Mopar calipers.
The noise went away for about two days and now it's back as loud as ever.
Anyone else ever have this problem and find a fix for it?
 

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I sometimes get a weird like creaking or squeaking noise, which seems to be coming from the brake pedal itself, underneath the dash. Mines not very loud, and I don't really hear it with the radio on. I haven't really looked into greasing anything down there yet.
 

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Discussion Starter · #3 ·
My wife can be backing out of the garage and I can hear the creak from 100' away. It is seriously annoying. I' seen other posts that say this is normal. This is no way normal. The car never did this when it was new. There has just got to be a simple answer to this. I wonder what the difference is between the factory pads and my ceramic pads are. I would really hate to buy Mopar pads after shelling out $180 for new ceramic pads. My gut tells me that if I do that it won't make any difference. Maybe I should try bleeding the brakes again. It did shut up for 2 days after the install/bleeding. Good Grief.
 

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My wife can be backing out of the garage and I can hear the creak from 100' away. It is seriously annoying. I' seen other posts that say this is normal. This is no way normal. The car never did this when it was new. There has just got to be a simple answer to this. I wonder what the difference is between the factory pads and my ceramic pads are. I would really hate to buy Mopar pads after shelling out $180 for new ceramic pads. My gut tells me that if I do that it won't make any difference. Maybe I should try bleeding the brakes again. It did shut up for 2 days after the install/bleeding. Good Grief.
Well, ceramic pads are actually supposed to be the quietest material, so I think you're good there.

Did you use a good brake caliper grease on the sliding surfaces, and especially on the backs of the pads, where they come into contact with the calipers?

I used to have a large jar of the green stuff, I think from Permatex, but it started turning really dark, so on my last brake job (my dad's minivan) I used a tube of newer orange "ceramic" grease, and the brakes started squeaking a couple weeks after I did the job. I just got a jar of CRC caliper grease (black) and I'm going to re-grease everything. I think the key is to use a sticky grease. The green stuff I used to use, got sticky after a while. The orange "ceramic" stuff seems kinda thin.

But don't use a sticky grease in the side pin boots. I used the green stuff in there once, and it kinda seized everything up. I use silicone based Sil-Glyde in the boots now.
 

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Discussion Starter · #5 · (Edited)
Did you use a good brake caliper grease on the sliding surfaces, and especially on the backs of the pads, where they come into contact with the calipers?
Yes, I used grease as you described.
This makes absolutely no sense to me.
I've done many, many brake jobs in my lifetime and consider myself very good at it.
Never had this issue before.
Am I the only Nitro owner facing this?
 

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Does the creaking happen all the time, or is it mainly backing out of the drive, when everything is cold? I just realized that mine does this too, but it's really just backing out of the drive, when the brakes are cold, and maybe even slightly glazed over with rust. Maybe it's the rust glaze that does it?

I'm not sure if I could hear mine 100' away though.
 

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Discussion Starter · #8 ·
Thanks for your reply Mr. Heat.
The creak is loudest when the car has set over night. The creak is less prevalent when the car has been driven for a while and pads/rotors heat up but the noise never goes away. So, my first thought is that the ceramic compound is causing the pads to stick to the rotors as the car cools off over night and then frees up somewhat after driving and they heat up which makes sense me. What doesn't make sense is that I have multiple vehicles that all use ceramic pads and I have never heard a noise out of those cars at all. In my opinion, this is not normal as some people say. If my truck can be made to brake quiet then my Nitro should be able to be made to brake quiet as well. I bet there is a simple fix for this. The part that's not so simple is to find the fix.
 

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You know, I just remembered seeing something on Rock Auto, which I didn't know what it was for. Maybe this is what it's for? It's called a "caliper low frequency noise damper".
2009 DODGE NITRO 4.0L V6 Caliper Low Frequency Noise Damper | RockAuto

Here's an explanation on what they do:

"Low frequency brake noise cannot be suppressed using traditional methods such as brake grease, pad shims, or quiet kits which only work for high frequency noise. Raybestos low-frequency dampers include an energy-absorbing compound that eliminates low-frequency vibration in the 0-2000Hz range. This helps reduce low-frequency noise for many problem applications."


 

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Discussion Starter · #10 ·
Thanks again for the reply. Yeah, I've seen the damper before. That's really for noise heard when applying brakes. The "creak" that I hear is heard mostly when I take my foot off of the brake.
Here's a YouTube video that plays the exact sound that I hear.

CREAKING/GROANING SOUND WHEN RELEASING BRAKE

By changing out literally all the brake hardware and lubricating the slide pins and cleaning and lubricating where the slide pins go in the caliper mounting bracket, I've done everything I can think of and then some. Still have the dreaded creak.
 

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Discussion Starter · #11 ·
Oh, And I realize that I can make that sound if I let the call creak forward slowly while applying light pressure to the brakes. Any car will do that. But that's not what I am doing. I can be at a stop and quickly and completely release the brakes and hear the loud creak noise. Only on my Nitro do I hears this.
 

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Discussion Starter · #12 ·
Anyone have any ideas here? I've replaced everything calipers, rotors and ceramic pads. The pads I replaced twice with different brands. Is it worth the time, effort and money to buy more new pads but get Mopar OEM pads this time or switch away from ceramic to semi-metallic?
 

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Anyone have any ideas here? I've replaced everything calipers, rotors and ceramic pads. The pads I replaced twice with different brands. Is it worth the time, effort and money to buy more new pads but get Mopar OEM pads this time or switch away from ceramic to semi-metallic?
I would try a different pad material. I've used Raybestos Element 3 EHT hybrid pads several times with good success. They are a mix of ceramic and semi-metallic. Or just try a straight semi-metallic?
 

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Discussion Starter · #16 ·
I'm still dealing with this stupid creaking noise when I release the brakes.
Seriously annoying.
I'm thinking of doing a complete brake job all over again for the third time.
This time I thing I will use MOPAR OEM Brake Pads.
I'm starting to wonder if there is some other component in the system that could affect how fast the pad release from the rotor when the brake pedal is released.
Does anyone have a drawing/diagram of the entire brake system that includes the brake booster, master cylinder, vacuum lines proportion valve?
I want to go over this thing by every square inch.
 
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