What is this high pitched cricket like noise?

[Benito1283]

Oops. Sorry. I overlooked that critical info.

How many miles on the car?

Just over 2,000

 

[Pianewman]

Did the SC actually remove the pads/ rotors and check for any embedded shrapnel? Do you see any grooves on the rotors, or are they completely smooth?

 

[Benito1283]

Did the SC actually remove the pads/ rotors and check for any embedded shrapnel? Do you see any grooves on the rotors, or are they completely smooth?

I don’t know, but I don’t think so. I think it was a cursory inspection (wheels off), and he mentioned he used a scope to look into the caliper or something. I don’t see any grooves in the rotors. I’ll get pics tomorrow. They seem smouth but kind of speckled, like typical minor surface rust. The techs said they appear normal. I have an appt next week and I will request they do a full brake inspection/reassembly, maybe test it with a different set of rotors and pads.

 

[Pianewman]

Have you actually tried the braking sequence the tech says he did? This is how all my rotors look after 21k miles, DFW region.

Prior to my last aggressive braking solution to the squeal, all the rotors had rust splotches on them.

I'm still thinking you don't have a serious problem, just need to drive up to the Coors plant, and ride the brakes all the way down (I'M JOKING! Stupidly did this when I was 17, in my dad's 1969 Rambler Ambassador, drum brakes, overheated them, couldn't stop at the bottom!!!!)

Your tech? 12-15 hard braking stops? I'll bet he did 4 or 5. That's all I needed, but my rotors haven't seen any road salt.

Hope you solve this w/o the inconvenience of another SC visit. Squealing brakes are a real nuisance.

 

[Benito1283]

Have you actually tried the braking sequence the tech says he did? This is how all my rotors look after 21k miles, DFW region.Prior to my last aggressive braking solution to the squeal, all the rotors had rust splotches on them.

I'm still thinking you don't have a serious problem, just need to drive up to the Coors plant, and ride the brakes all the way down (I'M JOKING! Stupidly did this when I was 17, in my dad's 1969 Rambler Ambassador, drum brakes, overheated them, couldn't stop at the bottom!!!!)

Your tech? 12-15 hard braking stops? I'll bet he did 4 or 5. That's all I needed, but my rotors haven't seen any road salt.

Hope you solve this w/o the inconvenience of another SC visit. Squealing brakes are a real nuisance.

Appreciate the info! Here are a few pics of my rotors. I do believe the tech did at least a dozen very hard stops. He seemed really thorough and invested in figuring it out. He took it out for three separate trips and let the brakes cool down in between. You could smell them from 50 ft away. The sound was gone for the entire rest of that day. The next morning it was louder than I'd ever heard it.

They are certain there's no "big" issue, i.e. motor or drivability and I feel confident in that too. I don't hear only when braking. I hear whether I'm accelerating, regen, or braking. Usually in the 45-65 mph range. He explained why brake sounds would be heard only in that range and it sounded logical.

Here is a link to the sound. You can hear it clearly on a phone.

 

[Pianewman]

I can hear nothing abnormal on my computer.
If it's intermittent, and a chirping sound, you may very well have a slightly warped rotor, with a high spot that's hitting the pad in an irregular pattern, based on rotor expansion/contraction from heat.

 

[Benito1283]

I can hear nothing abnormal on my computer.
If it's intermittent, and a chirping sound, you may very well have a slightly warped rotor, with a high spot that's hitting the pad in an irregular pattern, based on rotor expansion/contraction from heat.

For some reason it’s hard to hear on a computer. Try listening on your phone with the volume up. It’s a high pitch screeching sound and doesn’t change with speed changes. Warped rotor is a possibility. Maybe some deposits in one of the pads..?

 

[rjack1282]

Appreciate the info! Here are a few pics of my rotors. I do believe the tech did at least a dozen very hard stops. He seemed really thorough and invested in figuring it out. He took it out for three separate trips and let the brakes cool down in between. You could smell them from 50 ft away. The sound was gone for the entire rest of that day. The next morning it was louder than I'd ever heard it.

They are certain there's no "big" issue, i.e. motor or drivability and I feel confident in that too. I don't hear only when braking. I hear whether I'm accelerating, regen, or braking. Usually in the 45-65 mph range. He explained why brake sounds would be heard only in that range and it sounded logical.

Here is a link to the sound. You can hear it clearly on a phone.

That is the exact noise I have. I'm assuming you listened to my video on the first post? It's easier to hear on the phone as well.

I hope one of us figures out the long term resolution.

 

[Benito1283]

That is the exact noise I have. I'm assuming you listened to my video on the first post? It's easier to hear on the phone as well.

I hope one of us figures out the long term resolution.

Yep, I've heard your sound. Definitely the same. Glad I'm not alone. Wish we had an answer. Yours is at all speeds? I feel like that would be consistent with a brake sound. Does it ever go away/improve?

 

[rjack1282]

Yep, I've heard your sound. Definitely the same. Glad I'm not alone. Wish we had an answer. Yours is at all speeds? I feel like that would be consistent with a brake sound. Does it ever go away/improve?

Yep all speeds but can be intermittent.

After your experience with SC and other recommendations in the thread I am strongly leaning toward a brake pad/caliper issue. I'm still low miles at 5,800 and considering how little we use the actual brakes, these things are basically new and at least for me have not been bedded in yet. I think I've had to really step on them only once or twice briefly when someone has pulled out in front of me.

I should have time to perform the bedding procedure tonight/tomorrow and will report back.

 

[Madsen203]

Does sound dissipate when you apply the brakes?

 

[Benito1283]

Yep all speeds but can be intermittent.

After your experience with SC and other recommendations in the thread I am strongly leaning toward a brake pad/caliper issue. I'm still low miles at 5,800 and considering how little we use the actual brakes, these things are basically new and at least for me have not been bedded in yet. I think I've had to really step on them only once or twice briefly when someone has pulled out in front of me.

I should have time to perform the bedding procedure tonight/tomorrow and will report back.

I agree... and hoping it's 'just' a brake issue. Something must be off with ours because this is surely not the norm. My SC seems really determined to resolve it and they said they'll work on it all day, as long as they need to in order to isolate it. If they can't figure it out, I may take it to a brake specialist. Eager to hear if the bedding works for you.

 

[Benito1283]

Does sound dissipate when you apply the brakes?

Sometimes yes, sometimes no.

 

[mackgriggs]

I have two new 2022 MYP that both have the exact same issue. It was the only thing bugging me about the two new cars, but was just thinking that it might go away on its own. Finally started doing some searches and found your thread.

I always thought it was a brake issue, since it does some similar to where if you are spinning a bike tire, but the brake pad is just slightly not aligned, or the disk is warped, it makes that friction noise. It also kind of sounded like a loose electrical connection type sound, but I was still leaning towards a brake issue.

Definitely intermittent, and I'm sensitive to noises so it bugged me (wife never noticed it, but my son finally did the other day, or...maybe it gradually started getting louder).

On my phone, I could hear the sound from the video better than computer, but on either I had to turn it way up, and ....probably hard to hear if you already didn't know what sound you were looking for.

I did the bedding procedure described on this post, on both of my cars last night ->

PSA: Bed in your brakes

And yes, I did 30 braking events on each, 1/2 mile apart, braking to 10mph from 60mph, then drove a few miles without braking.

This morning on my first drive, the noise was MUCH improved, almost to the point where it was a "did I just imagine it doing the sound again?" level.

I'm hoping....it doesn't come back but I could try the bedding again.

I'm wondering, if it really is a different problem where newer model ys just got a bad batch of pads, or rotors...or something, and we are looking at a recall.

OR....since this didn't happen with my 2020 MYLR, if its only affecting MYP since they have different brake calipers, and requires the bedding process.

Are both of your MYs, MYPs?

 

[hatch]

New Tesla owner so not sure if this is a common noise that we just have to get used to or if it is not normal. It started off very intermittent like on the first drive of the day we would hear it. Now it seems to be getting less intermittent and doesn't depend on whether the car is cold. It is almost so high pitched it's hard to hear through my cell phone video but it seems to be coming from forward of the driver position. I almost describe it like the sound of crickets coming from under the hood.

I hear it with HVAC on or off so I have sort of ruled that out and it's not the whine sound heard during hard accel or regen. I like that noise. I wouldn't describe it as a whine at all more like a bearing noise possibly in the front motor.

You get all kinds of noises in disc brakes just by virtue of the tight tolerances between the back of the brake pad and the pistons. The way i understand it, when you drive, it sets up a high frequency vibration that sounds like a type of squealing.

If this is what's causing the noise - you will never hear the noise when applying the brakes. Are you SURE you also hear the noise when actually braking?

 

[Benito1283]

I have two new 2022 MYP that both have the exact same issue. It was the only thing bugging me about the two new cars, but was just thinking that it might go away on its own. Finally started doing some searches and found your thread.

I always thought it was a brake issue, since it does some similar to where if you are spinning a bike tire, but the brake pad is just slightly not aligned, or the disk is warped, it makes that friction noise. It also kind of sounded like a loose electrical connection type sound, but I was still leaning towards a brake issue.

Definitely intermittent, and I'm sensitive to noises so it bugged me (wife never noticed it, but my son finally did the other day, or...maybe it gradually started getting louder).

On my phone, I could hear the sound from the video better than computer, but on either I had to turn it way up, and ....probably hard to hear if you already didn't know what sound you were looking for.

I did the bedding procedure described on this post, on both of my cars last night ->

PSA: Bed in your brakes

And yes, I did 30 braking events on each, 1/2 mile apart, braking to 10mph from 60mph, then drove a few miles without braking.

This morning on my first drive, the noise was MUCH improved, almost to the point where it was a "did I just imagine it doing the sound again?" level.

I'm hoping....it doesn't come back but I could try the bedding again.

I'm wondering, if it really is a different problem where newer model ys just got a bad batch of pads, or rotors...or something, and we are looking at a recall.

OR....since this didn't happen with my 2020 MYLR, if its only affecting MYP since they have different brake calipers, and requires the bedding process.

Are both of your MYs, MYPs?

Thanks for the info and glad you've had some success with bedding in your brakes. Perhaps I just need to do a little more. It's difficult without being able disable regen so doing it when the car is cold is the best bet. The instructions you linked would suggest that the *extremely* hard braking my SC did could actually be counterproductive. And my car is a 2021 MYLR.

 

[Benito1283]

You get all kinds of noises in disc brakes just by virtue of the tight tolerances between the back of the brake pad and the pistons. The way i understand it, when you drive, it sets up a high frequency vibration that sounds like a type of squealing.

If this is what's causing the noise - you will never hear the noise when applying the brakes. Are you SURE you also hear the noise when actually braking?

Makes sense. I'm 70% sure I still hear it when I apply the brakes but I will definitely have to test this out to confirm. It's possible there are times I think I'm actually braking but it's really just the regen slowing me down.

 

[hatch]

Makes sense. I'm 70% sure I still hear it when I apply the brakes but I will definitely have to test this out to confirm. It's possible there are times I think I'm actually braking but it's really just the regen slowing me down.

Ok.. regen feeling like brakes really makes sense.. hard to distinguish the two unless you're actually watching for brake action vs regen action.

After multiple tests, if you decide you hear the sound only when brakes are NOT applied, i'll bet it's the lack of or incorrect positioning of the anti-squeal shims.

Maybe the shims (inside the caliper, between the pads and the pistons) are just not in there. Or maybe there aren't enough. Sometimes factory shims consist of more than one behind each pad. Both inner and outer pads on every wheel, need these shims.

I can totally see service not thinking about this or it being too much of a bother for them to check - especially if you need to swing the caliper up out of the way to really see how many shims are in there and their condition. The noise will drive you crazy and seem impossible to resolve. Trust me, i've been there on an old car of mine.

If they can't seem to fix it, unfortunately i would bite the bullet and take it to a trusted mechanic, if you know of one. I don't believe Tesla brakes are all that special.

 

[Benito1283]

Ok.. regen feeling like brakes really makes sense.. hard to distinguish the two unless you're actually watching for brake action vs regen action.

After multiple tests, if you decide you hear the sound only when brakes are NOT applied, i'll bet it's the lack of or incorrect positioning of the anti-squeal shims.

Maybe the shims (inside the caliper, between the pads and the pistons) are just not in there. Or maybe there aren't enough. Sometimes factory shims consist of more than one behind each pad. Both inner and outer pads on every wheel, need these shims.

I can totally see service not thinking about this or it being too much of a bother for them to check - especially if you need to swing the caliper up out of the way to really see how many shims are in there and their condition. The noise will drive you crazy and seem impossible to resolve. Trust me, i've been there on an old car of mine.

If they can't seem to fix it, unfortunately i would bite the bullet and take it to a trusted mechanic, if you know of one. I don't believe Tesla brakes are all that special.

Super helpful info, thank you. I will test this tomorrow (we just got a foot of snow last night). If I still hear the sound when using the friction brakes, could it still be some type of brake issue?

 

[mackgriggs]

Thanks for the info and glad you've had some success with bedding in your brakes. Perhaps I just need to do a little more. It's difficult without being able disable regen so doing it when the car is cold is the best bet. The instructions you linked would suggest that the *extremely* hard braking my SC did could actually be counterproductive. And my car is a 2021 MYLR.

Well I don't know how hard your SC was doing the braking, but I was doing mine just to the point of ABS almost activating (took some trial and error to find that spot). I charged to 100% so regen would be limited, but......wouldn't do that again. That lasted about 1 time of braking/accelerating before it was to a level where regen started activating again. I guess I could do it when the battery is really cold, but...again, that might only last a few times of the accelerating/braking cycle (I would accelerate fast back to 60 since I was still on a road that had some cars, though traffic was extremely light...I did it on a highway at 10pm. )