Very high pitched squeaking noise

[iboughtatahoe23]

Everything was sounding good before my trip from NE South Dakota to the cities. I got my coolant flushed, oil changed and power steering fluid flushed and changed. Also did the engine cleaner flush all at Valvoline. She was running like a top. Drove smooth all the way there and back. No complaints. There was a lot of hard braking in the cities.


I’m back in town now and what started off as a small and barely noticeable high pitched squeak is getting louder and more persistent. It seems to only happen under 30 mph and when turning and going slow so far. I had an inspection done as well before winter hit and brakes were good I was told. I was only told the rear shocks may need service in the spring or summer. I have another trip coming up and just wanna make sure she’s good to go again. I am taking it in to shop tomorrow. I was told it can be the suspension but I jumped up and down on the front and back end and didn’t hear much out of the ordinary. Was also told it could be the U joint. I had a similar noise I posted about here in the past and it was a rock. So I’m hoping it’s that again and nothing major. This one guy swears up and down he had the same issue and it was the u joint. Also maybe glazed pads from the hard braking in the city traffic?

Here’s the noise maybe you guys can hear it maybe not. It’s really high pitched and the processing of uploading the video kinda makes the sound quality worse.

Video below: TIA for all your help

Video Unavailable

This video is unavailable.

streamable.com

 

[Geotrash]

Everything was sounding good before my trip from NE South Dakota to the cities. I got my coolant flushed, oil changed and power steering fluid flushed and changed. Also did the engine cleaner flush all at Valvoline. She was running like a top. Drove smooth all the way there and back. No complaints. There was a lot of hard braking in the cities.


I’m back in town now and what started off as a small and barely noticeable high pitched squeak is getting louder and more persistent. It seems to only happen under 30 mph and when turning and going slow so far. I had an inspection done as well before winter hit and brakes were good I was told. I was only told the rear shocks may need service in the spring or summer. I have another trip coming up and just wanna make sure she’s good to go again. I am taking it in to shop tomorrow. I was told it can be the suspension but I jumped up and down on the front and back end and didn’t hear much out of the ordinary. Was also told it could be the U joint. I had a similar noise I posted about here in the past and it was a rock. So I’m hoping it’s that again and nothing major. This one guy swears up and down he had the same issue and it was the u joint. Also maybe glazed pads from the hard braking in the city traffic?

Here’s the noise maybe you guys can hear it maybe not. It’s really high pitched and the processing of uploading the video kinda makes the sound quality worse.

Video below: TIA for all your help

Video Unavailable

This video is unavailable.

streamable.com

Train whistle. I didn't hear anything else out of the ordinary in that video.

 

[iboughtatahoe23]

Train whistle. I didn't hear anything else out of the ordinary in that video.

Ok well maybe I can get some pointers off the info I provided.

 

[iboughtatahoe23]

Train whistle. I didn't hear anything else out of the ordinary in that video.

It’s a very high pitched screech. Like a rock grinding on metal. Something with Brakes.

 

[Dustin Jackson]

@iboughtatahoe23 Does it happen when you slow down or brake in a straight line?

 

[iboughtatahoe23]

@iboughtatahoe23 Does it happen when you slow down or brake in a straight line?

No seems to be when taking off. And slowly. happens only under 25mph Not all the time. I had a similar issue and it was a pebble but much more dynamic and louder noise. This noise is softer, quieter, and seems to revolve like whatever is making then noise is turning with the wheel speed I had my brake pads checked and can’t recall I wanna say maybe at least 8mm left on the pads. It doesn’t shake on the highway. Don’t think it’s the rotors. I tbink that Checked out too. I was told my rear shocks are leaking don’t know if that might be why. That was in the fall before winter. They seem to be holding up fine. The shop when they told me about the rear shocks gave me really crappy and small black and white pictures on paper and i couldn’t even see any leaks. I checked myself and saw no leaks either. I tested the shocks for that squeak noise By hopping on the front and back. Nothing. So maybe that rules that out. Figured I’d share that part

 

[iboughtatahoe23]

Want to add that my 2014 Tahoe has 172300 miles.

I also recently took it in one morning for an inspection bc I’m going on a trip soon. (Took it on a 500 mile round trip to Minnesota 2 weeks prior and it drove fine, it still does)

any ways, Said they didn’t hear anything and had the vehicle back to me that afternoon. Wonder if they even looked or did an inspection. Went back to pick it up and the same three Yukons were on the lifts. They don’t charge me anything and i specifically asked for an inspection. Guess im confused bc it’s a reputable shop based off the reviews.

 

[Dustin Jackson]

@iboughtatahoe23 I wonder if the calipers aren't releasing properly and are dragging, when was the last time you replaced your caliper hoses?

 

[wjburken]

Went back to pick it up and the same three Yukons were on the lifts. They don’t charge me anything and i specifically asked for an inspection. Guess im confused bc it’s a reputable shop based off the reviews.

If they couldn’t hear anything while driving it, they probably didn’t bother putting it up on a lift.

As @Dustin Jackson suggested, you might have a brake hose at one or more of the wheels that’s starting to break down in the inside restricting the brake fluid from letting the caliper fully retract.

 

[iboughtatahoe23]

If they couldn’t hear anything while driving it, they probably didn’t bother putting it up on a lift.

As @Dustin Jackson suggested, you might have a brake hose at one or more of the wheels that’s starting to break down in the inside restricting the brake fluid from letting the caliper fully retract.

How to fix? I don’t own much for tools or a jack. I need to take this trip. I hope it will make it this last trip.

 

[iboughtatahoe23]

If they couldn’t hear anything while driving it, they probably didn’t bother putting it up on a lift.

As @Dustin Jackson suggested, you might have a brake hose at one or more of the wheels that’s starting to break down in the inside restricting the brake fluid from letting the caliper fully retract.

I understand not hearing anything but I still asked for a vehicle inspection. With a receipt . Never got a receipt or a packet like other places. I leave for my trip tomorrow.

 

[Doubeleive]

my money is on wheel hub, jack up the front end so the wheels are off the ground and spin each wheel, listen to each one carefully. they should be mostly dead silent
also check for wheel play at 12 & 6 there should be none, some slight play will be normal at 9 & 3 because of the steering.
@170k plus you are past the typical life of hub's which is 165k
if it is not that then you should be able to hear some kind of noise by spinning the wheel if it is a rock or brake related, the brake pad sensor could be the culprit as well.
take the wheels off and use a flashlight to look at the pad thickness
you can grab a jack at harbor freight for cheap

 

[iboughtatahoe23]

my money is on wheel hub, jack up the front end so the wheels are off the ground and spin each wheel, listen to each one carefully. they should be mostly dead silent
also check for wheel play at 12 & 6 there should be none, some slight play will be normal at 9 & 3 because of the steering.
@170k plus you are past the typical life of hub's which is 165k
if it is not that then you should be able to hear some kind of noise by spinning the wheel if it is a rock or brake related, the brake pad sensor could be the culprit as well.
take the wheels off and use a flashlight to look at the pad thickness
you can grab a jack at harbor freight for cheap

Don’t have the stuff to do that. I did take it to a reputable local shop and they said it’s most likely debris, salt or a rock stuck somewhere. I’m not sure exactly what the mechanic all did I’ll call back and ask. I know he said he cleaned the brakes and rotors. It was less than an hour so not sure what he all did in that time. Imagine he checked the wheel hub for play and stuff?

 

[iboughtatahoe23]

my money is on wheel hub, jack up the front end so the wheels are off the ground and spin each wheel, listen to each one carefully. they should be mostly dead silent
also check for wheel play at 12 & 6 there should be none, some slight play will be normal at 9 & 3 because of the steering.
@170k plus you are past the typical life of hub's which is 165k
if it is not that then you should be able to hear some kind of noise by spinning the wheel if it is a rock or brake related, the brake pad sensor could be the culprit as well.
take the wheels off and use a flashlight to look at the pad thickness
you can grab a jack at harbor freight for cheap

They said pad thickness is good.

My trips is tomorrow morning and I’m not really confident doing that all myself to be honest. Two shops said it’s fine so I guess I’m just gonna ride it. If it it gets worse or something tragic happens I’ll limp it or tow it to where I’m traveling and get it dealt with. Not gonna lie I’m still anxious bc the noise is still there.

 

[Doubeleive]

Don’t have the stuff to do that. I did take it to a reputable local shop and they said it’s most likely debris, salt or a rock stuck somewhere. I’m not sure exactly what the mechanic all did I’ll call back and ask. I know he said he cleaned the brakes and rotors. It was less than an hour so not sure what he all did in that time. Imagine he checked the wheel hub for play and stuff?

that really depends... on how much effort was used
if the problem is not consistent and is intermitent then that could be harder to narrow down
if it does it all the time and still is doing it after this "inspection" then perhaps it is time to find another mechanic.

 

[Doubeleive]

consistent noises are generally not that hard to narrow down with the exception of internal engine or transmission noise which can require opening it up.

 

[iboughtatahoe23]

Says wheel hub was checked

 

[Doubeleive]

View attachment 422668
Says wheel hub was checked

picture is cut off

 

[iboughtatahoe23]

picture is cut off

That’s all there is.

 

[iboughtatahoe23]

@Doubeleive