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Discussion Starter · #1 ·
2018 Soul 1 Mil

As title implies, I've a squeal coming from the right rear. It sounds like metal on metal.

I am due for brake service when I take in for my 60k

The meat of the squeal:

Squeals intermittently, sometimes when a hard turn is taken to the left, or when I start going on a cold start. Goes away when I tap the brakes. Then comes back randomly, but always stops on application of the brakes. Sometimes will come back faintly driving straight then stops.

Just need to know if it's just the low brake squealer if ours have those and I'm fixating on it, or am I looking at impending doom?
 

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Discussion Starter · #3 ·
It sound like you answered your question. You need new brakes. The rear caliper could be sticking and wearing that side quicker than the other. Don’t let it go on like that for too long.
Hopefully your right about that one, the stuck caliper. I'll have them check them both on the rear. I'd planned on calling them on Monday to look in to scheduling sooner, but now that is a necessity.

Puzzling is why it would go away when the brakes are applied, and come back from inertia. Is there a minor amount of play for the pads?
 

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Discussion Starter · #5 ·
Yes. A couple years ago my 2011 was doing the same thing. Brakes can be funny. They squeal sometimes and not others. Quiet when I apply them but noisy when they’re just rolling. In my case it was the caliper, it was sticking and one pad was worn more than the other. I live in the salty area so I replaced the calipers too, but you might be able to just have them serviced and be ok.

Are they the original brakes? If so they are about due for service anyway. Your mechanic will be able to let you know what’s going on. Probably just new rotors and pads.
The brakes are the ones that came with the car, so, I knew it was coming.

Sticky caliper may be possible. I live in the PNW, but I drive my Soul everywhere, even the places they say it should make it to, so possible some debris got in there.

I guess the only thing left is wait until the appointment gets setup. My dealer is decent so maybe I might be able to get it in before thanksgiving, get the brakes done, then the 60k service. Hate to do 2 appointments, but might need to.

Thx for the info and assurance
 

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Discussion Starter · #9 ·
Not on a 2018. The parking brake is part of the brake caliper. On the first generation they had the parking brake shoes and springs inside of the rotor “hat” but on the second generation it’s part of the caliper.
Should I have them give it a once over anyway, or should I only be worried about the brakes themselves?
 

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Discussion Starter · #12 ·
The most likely culprit is the pad material has come away from the backing plate, you can jack up that corner and look through the wheel, turn/spin the wheel just slightly back and forth and see if the pad looks like it is moving. Super common problem on Gen2s that are in salt states that are not driven too many miles per year.
The pad is still set where it should be, but it does seem to be riding the rotor, it seems to be 1 mm closer to the rotor than the left one. The difference of a sheet of paper.
 

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Discussion Starter · #13 ·
My biggest question, is it safe to drive in this condition? The operation isn't effected, just squeals.
 

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Discussion Starter · #15 · (Edited)
As long as it’s not getting too hot it will be ok until you can get it fixed. The rotors will be a little hot after using the brakes, but if it’s significantly hotter than the others, I wouldn’t drive it very far until you get it fixed.
That was actually the first thing I checked, was the temp of the wheels from right to left, and both were the same luke warm from normal use, same with the rotors. The right one has slightly deeper trolley tracks than the left. I also pump my brakes going down hills and on longer stops, so I suppose it doesn't have a chance to stick for long. So right now I guess it's more an annoyance with the system saying it's "that time". I will update this thread once I get it sorted.

Again, Thank You 😊

Edit: Was a victim of mobile autocorrect.
 

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Discussion Starter · #16 ·
Update:

This morning when I went to leave, I decided to try something until I can get it in dealer said 3-4 weeks. Oiy.. What I did was before I started the car, I repeatedly pressed the brake pedal until it couldn't be pressed anymore, then started the car. Repeated after I released the e-brake. Then left, it seems to have done something as there was only a faint rub and nothing else.

Could the extra pressure re-adhered the pad to the backing if only temporary? That's kind of what I was acting on.
 

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Discussion Starter · #19 ·
Update:

Found out it isn't the right rear, it's the right front that is making all the racket.

The metallic noise has changed a hair too. It is really loud first, I'm assuming due to everything being cold, then settles down to a faint scraping as the mechanics warm up. Either noise doesn't change volume based on speed either, both rims are the same temp at the end of the drive so no bearing or caliper issues I think.

I have an appointment on the 8th with a trusted independent mechanic as the dealer can't do brakes for 4 weeks as of the 26th of November. Odd considering the dealer is Johnny-On-The-Spot with the knock sensor update.

I will be having the mechanic use OEM parts though, in case anything happens.
 

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Discussion Starter · #21 · (Edited)
Bet its a dust sheild...
Well, it needs front brakes anyway so.....

Edit:
Went outside with a flashlight and turned the wheel both ways. Man they don't give you room to look..

Anyhow, felt around the rotor, there were 2 suspect points in the dust shield, moved those. Then felt around the caliper, the brake pads in the front have at most 5% left. Was able to jiggle the inner pad a bit. Broke of a shite-ton of the rust and crap what builds on the edge of the rotor too.

Drove it, gave the usual squeal, stopped, the squeal got higher pitched, then stopped almost immediately. I am now 100% it's that brake pad being weird.

Regardless they get new ones next Wednesday.
 

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Discussion Starter · #24 ·
Follow up.

Had the front done. New pads and rotors.

A question about this.

I am now greeted with a nice smell of burning brakes. I have looked into it and found numerous sources say this is normal for new pad and rotors. Something about the resin in the pads curing and also about a transfer film getting laid on the rotors?

And the most startling thing happened too, not sure if it is related or not.

Went up to the pass, and the ole girl couldn't move her fat toockus through a bit of snow. After I got free, there was a god awful shudder that went away gradually. Again, not sure if it is related. The significant other things one of the wheels collected a gob of something that wore down. I hope that was a one off or related to new brakes.
 

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Discussion Starter · #26 ·
How much snow were you trying to move through? The “shudder” could have been snow stuck in the rim making it feel out of balance. That’s happened to me, snow can pack inside the rim and make a terrible vibration.

4-6" through a parking lot with humps of 8 or more. Lost the momentum going up the last hump out. So that actually makes the most sense as I've got the kia aluminum 18s with the barely there spokes.

What do you mean by the wheels collected a “gob” of something?

She thought given the crap we were going through, it could have collected on the tire itself.

Your brakes shouldn’t be smelling like they are burning. Maybe for a short while after new pads and rotors, but it should go away quickly.

I have a suspicion that the shop didn’t service the caliper slide pins and it’s still sticking. Check the temperature of the rotors after a short drive. The fronts will normally be hotter than the rear, but if you can feel heat coming off them, bring the car back to the shop and have them fix what they were supposed to in the first place.
I got the car back yesterday from the shop so the brakes only had a few stops on them. The shop I went to literally is a mile down the road. Had to go there as Kia couldn't get it in for 4 weeks. Had them source OEM though. The front rims were equally warm from the center outwards which is normal. They were warm, but by no means too hot to the touch with minimal heat coming off them.

If the smell doesn't go away after a few days we take my soul everywhere, so extra stops on the pads is easy. It just seemed odd to me is all. It really is my autism showing. I fixate on things like that.

Thank you for the info about the balancing thing. I had no idea the rims were that sensitive to disruption. The vibration did go away after a few files and as it warmed up, so I do hope it was just packed snow.
 
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