Persistent Brake Squeal - Page 2 - Dodge Challenger Forum: Challenger & SRT8 Forums
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post #11 of 42 (permalink) Old 04-20-2019, 01:14 PM Thread Starter
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Originally Posted by ChallyTatum View Post
Not sure if you just snapped a pic in the middle of the process...but please throw some jack stands under there. Last thing I want to do is start referring to you in the past tense.
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there you go...although I fail to see how that is going to make all this any safer...but no matter, what @ChallyTatum requests, @ChallyTatum receives!!


(don't worry, there is no point at which I will actually crawl under the car to put myself in danger...except for when I go to retrieve those jack stands...oh the irony if the worst case scenario were come to pass...)

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post #12 of 42 (permalink) Old 04-20-2019, 01:17 PM Thread Starter
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Originally Posted by BlackHemi41 View Post
I remember with my 2010 R/T, I had a nasty brake squeal after installing new pads and rotors. I tracked it down to the right front outer brake pad. The pads I got (EBC yellow) weren't exactly perfect in their fitment. This one pad in particular was a bit short in length (where the end tabs slid into the caliper bracket). This allowed the pad some wiggle room, thus causing the squeal if it was allowed to get crooked and apply force unevenly under light braking. The fitment was actually bad enough that sometimes I could hear it clank over bumps. It also threw off a ton of brake dust. Some is normal, but this was excessive. It looked like particulate soot emissions from a diesel.

I got rid of them and went with Mopar replacement pads. Perfect fit and quiet after that.

Brake squeal noises are usually caused by microscopic vibrations in the friction surface, making a high pitch frequency. Some minor noise is perfectly normal, but any movement or deflection in braking components, or anything that causes uneven pressure distribution across the pad can make it much worse. Anyway, check for proper pad fitment. You probably would have noticed, but thought I'd throw that suggestion your way.
No, the saga of what I went through to arrive at the pads that are on it is something else, and very realistically be related to what you're talking about. I will make sure to check them for any wiggle room upon reassembly just to see if I can spot any irregularities though. Thanks!
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post #13 of 42 (permalink) Old 04-20-2019, 01:17 PM Thread Starter
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Here's a question for everyone and no one in particular:

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post #14 of 42 (permalink) Old 04-20-2019, 01:18 PM
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there you go...although I fail to see how that is going to make all this any safer...but no matter, what @ChallyTatum requests, @ChallyTatum receives!!


(don't worry, there is no point at which I will actually crawl under the car to put myself in danger...except for when I go to retrieve those jack stands...oh the irony if the worst case scenario were come to pass...)
I see you already got into the Karbach's Blood Orange Radler. At least the bacon hauler won't land on the brand new rotors.


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post #15 of 42 (permalink) Old 04-20-2019, 01:20 PM
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Here's a question for everyone and no one in particular:

WP 20190420 14 00 39 Pro - YouTube
Looks find to me...if they moved freely it is a sign of a leaky seal and you don't want water going in there.
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post #16 of 42 (permalink) Old 04-20-2019, 01:23 PM
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Damn @ChallyTatum , tap the brakes a scosche, I haven't even decided the order in which I will be consuming my hydration for the day.

The Bacon Hauler is indeed up on the ramps already, but I can't start turning wrenches until I have made a very important decision for the task ahead - which beers to drink, how many of each, and in what order.

Here are the entrants:
Attachment 944015

And here's what I've decided upon for the order and quantities in which to consume them:
1. 2 x Rahr & Sons' Adios Pantelones
2. 1 x Sierra Nevada's Otra Vez
3. 2 x Shiner's Sea Salt & Lime
4. 1 x Karbach's Blood Orange Radler
5. 1 x 3 Nations' Royal Blood*
6. 1 x Revolver's Blood & Honey*

* - may not make it this far, but just in case...

I think that combination, in those amounts, and in that specific order will combine to give me the optimum scenario for the best chance of success with my brakes.
Just remember to stop when you start talking like this:
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post #17 of 42 (permalink) Old 04-20-2019, 01:38 PM Thread Starter
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Quote:
Originally Posted by ChallyTatum View Post
Just remember to stop when you start talking like this:
Wow, that is something to behold there...I don't know what surprises me more, that they let him go on and do his whole routine despite being drunker'n a skunk, or that he was able to get through it all despite having the hiccups. Although I swear a couple of those "hic"s were actually some alcohol-laden bile being returned back up the esophagus, which then had to be re-swallowed...BLECK!!


I would say I won't get like that today, but there is disturbing evidence I may already be there - I swear that video I uploaded to YouTube and linked to above had sound in it. I was actually posing a question to the viewer. But I'll be damned if it appears to be devoid of sound now.

I guess I'll switch to water now...
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post #18 of 42 (permalink) Old 04-20-2019, 03:25 PM Thread Starter
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Swapped the rear rotors from side to side, and took great care to clean and properly align hardware during reassembly, and added anti-squeal goop on back of non-piston pads. All bolts torqued to proper lb/ft spec, and brake cleaner used while broken down to make sure everything goes back together clean.

results: No change in behavior - the left rear brake still squeals at braking onset until right before complete stop when applying light to medium pressure.


I uploaded the dash cam video recorded while doing the test drive, but for some reason I cannot hear the squeal in the version YouTube plays (it's clearly there in the raw footage), but just in case its me, here that is:
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post #19 of 42 (permalink) Old 04-20-2019, 03:30 PM
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I'm thinking that it has to be caliper-related at this point. I think you've ruled everything else out...
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post #20 of 42 (permalink) Old 04-20-2019, 03:48 PM Thread Starter
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I'm thinking that it has to be caliper-related at this point. I think you've ruled everything else out...
I'm starting to think you are right...so what time can you swing by to pick up the troubleshooting where I left off??


No seriously, I'm past burned out on this whole brake thing, I could snap and go vegan or something crazy if I have to pull those wheels and disassemble the brakes one_more_time...

I've got beeeer! Cold, tasty, cold, yummy beeeeer!!!

7pm work for you?
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