Front end Noise Need help!

[992dr]

wj, I tried to quote you and respond in your quote but that obviously did not work.

I hear it at low speeds starting from a dead stop. I do not notice it at higher speeds.

I believe that is the same

Hmm, I only hear at low speeds and do not notice anything when applying the brakes. Seems to happen from a dead stop.

I honestly cant tell which side because I'm driving. My wife will not drive the Tahoe after I had some work done to it. I'll ask my neighbor to drive it while I listen this weekend.


"If it appears to be a noise associated with the rotation of the wheel"

I hope its not a bad hub.
Could a warped rotor cause issues like this?
This turned out to be a real mess of a quote haha​

 

[wjburken]

wj, I tried to quote you and respond in your quote but that obviously did not work.


Is the sound dependent more on the speed of the vehicle or on the roughness of the road? I hear it at low speeds starting from a dead stop. I do not notice it at higher speeds.

Does it change for the better or worse when you turn, like it did before?
I believe that is the same
Does it only happen when you apply the brakes or does it go away when you apply the brakes or is it independent of the brakes? Hmm, I only hear at low speeds and do not notice anything when applying the brakes. Seems to happen from a dead stop.

Does it seem to be more pronounced on one side of the vehicle or the other?
I honestly cant tell which side because I'm driving. My wife will not drive the Tahoe after I had some work done to it. I'll ask my neighbor to drive it while I listen this weekend.

Maybe have your wife drive it up and down the street turning side to side and hitting and letting off the brakes while you stand/walk beside it on both sides and listen to see if you can tell which side its loudest on. Or ride with the windows down to listen switching from being the driver with your head out the window to being the passenger with your head out the window. My neighbors have gotten used to seeing me do strange things trying to figure out where noises are coming from on vehicles that I am working on.

If it appears to be a noise associated with the rotation of the wheel and not the travel of your suspension, and is still around after you put the new pads on, I would not dismiss the possibility that you got a bad hub.
I did not put new pads on. After inspecting the old ones and comparing to the new ones, they had very minimal wear and decided to put the old ones back on. This was after removing cleaning and lubricating the slides on the calipers
That is why it would be interesting to know more about the sound's location and what, if anything, seems to affect it. A bad bearing is not unheard of in a new hub. Also, it is not unheard of for a hub to have excessive run-out where the flange isn't perpendicular to the axis or rotation. That can mimic a warped rotor. They actually sell tapered shims for this reason.

I hope its not a bad hub.
Could a warped rotor cause issues like this?

Sorry to throw a bunch of questions at you, but I have been in your shoes before and it can be very frustrating. I have learned to just be methodical and take things step by step to rule things in or out as possible causes​

If noise is from a dead stop, your calipers might be hanging up but I know you just replaced them. I can’t remember if you said you replaced the rubber brake line. They can swell on the inside and restrict fluid and keep pads engaged longer. When you swap pads, might take a look.

A warped rotor could make a similar noise but I would think you’d notice pulsations in your brakes when you stop.

 

[992dr]

If noise is from a dead stop, your calipers might be hanging up but I know you just replaced them. I can’t remember if you said you replaced the rubber brake line. They can swell on the inside and restrict fluid and keep pads engaged longer. When you swap pads, might take a look.

A warped rotor could make a similar noise but I would think you’d notice pulsations in your brakes when you stop.

I didn't replace my calipers, I was going to replace them but decided to try cleaning a lubricating them first and see how that goes.

I didn't replace any lines, yet. All stock right now. I will take a peak at them. I was planning on replacing my lines with SS lines but have not done it yet.

That is why I brought it up. I think I may have jinxed myself and they may be warped a little. I will be paying more attention to this this week as I really don't notice it too much but I have noticed it. I don't drive very much, work is 4.5 miles away and everything else I need is within 2 miles of my house, not really enough time to get up to speeds haha.

 

[OR VietVet]

Best time to check for warped rotors is coming off highway speed at an off ramp.

 

[wjburken]

I didn't replace my calipers, I was going to replace them but decided to try cleaning a lubricating them first and see how that goes.

I didn't replace any lines, yet. All stock right now. I will take a peak at them. I was planning on replacing my lines with SS lines but have not done it yet.

That is why I brought it up. I think I may have jinxed myself and they may be warped a little. I will be paying more attention to this this week as I really don't notice it too much but I have noticed it. I don't drive very much, work is 4.5 miles away and everything else I need is within 2 miles of my house, not really enough time to get up to speeds haha.

That’s right, I forgot you cleaned the pins and put new grease. Absolutely nothing wrong with going that route.

You can do a test with rotors by taking a little ride and doing a hard stop or two and see if it pulses. Off-ramps from highway speed as @PNW VietVet said will surely let you know.

If you test the rotors and don’t get any pulsing, I would check to make sure the calipers are still sliding freely. Even if you do get pulsing, I’d check them. If they are, and the cylinder looks to be in good shape, I would look hard at your brake lines.

I would put a bad hub or suspension stuff way down on the list of suspects now with the information you have shared.

 

[992dr]

Best time to check for warped rotors is coming off highway speed at an off ramp.

This could pose to be a problem, nearest highway is about 45 minutes away

That’s right, I forgot you cleaned the pins and put new grease. Absolutely nothing wrong with going that route.

You can do a test with rotors by taking a little ride and doing a hard stop or two and see if it pulses. Off-ramps from highway speed as @PNW VietVet said will surely let you know.

If you test the rotors and don’t get any pulsing, I would check to make sure the calipers are still sliding freely. Even if you do get pulsing, I’d check them. If they are, and the cylinder looks to be in good shape, I would look hard at your brake lines.

I would put a bad hub or suspension stuff way down on the list of suspects now with the information you have shared.

No off-ramps within 45 minutes of me so hard stops it is haha.
I'll plan on doing this within the next week or two.
What stainless lines would you recommend?

That's a relief about the hub and suspension parts.

Thank you very much for the assistance, I really do appreciate it

 

[992dr]

A double post

 

[wjburken]

This could pose to be a problem, nearest highway is about 45 minutes away



No off-ramps within 45 minutes of me so hard stops it is haha.
I'll plan on doing this within the next week or two.
What stainless lines would you recommend?

That's a relief about the hub and suspension parts.

Thank you very much for the assistance, I really do appreciate it

Glad to be of some help. My goal is to always be more of a help than a hinderance.

As for stainless steel lines, I can’t recommend any as I’ve never used them. I have replaced lines but have always used whatever Autozone or NAPA had. There are others on here that have gone that route that are much more knowledgeable than I am on that topic.

 

[ScottyBoy]

I had a very similar issue on my truck. It ended up being the brake pads. The "ears" on the pads were vibrating and rattling against the clips/brake hardware. I lubricated the brake pads ears with copper based anti seize lubricant and they were quiet for about a year. Noise came back, so I cleaned and lubricated the pad ears again. This time I also added some "anti squeal" stuff to the area where the pads contacts the caliper and the caliper pistons. No noises ever since, and that was about a year ago.

 

[992dr]

Glad to be of some help. My goal is to always be more of a help than a hinderance.

As for stainless steel lines, I can’t recommend any as I’ve never used them. I have replaced lines but have always used whatever Autozone or NAPA had. There are others on here that have gone that route that are much more knowledgeable than I am on that topic.

Well, you certainly have been a help
I had ss lines on my 2dr but don't remember which ones I had. I'll search the site and see what I can find.

I had a very similar issue on my truck. It ended up being the brake pads. The "ears" on the pads were vibrating and rattling against the clips/brake hardware. I lubricated the brake pads ears with copper based anti seize lubricant and they were quiet for about a year. Noise came back, so I cleaned and lubricated the pad ears again. This time I also added some "anti squeal" stuff to the area where the pads contacts the caliper and the caliper pistons. No noises ever since, and that was about a year ago.

Thanks Scotty, when I have mine apart I'll be sure to check and hit those spots with some anti seize. I'll go find some anti squeal too.
Thanks again