Grinding noise when slowing...

ajp · 03-31-2017, 10:20 AM

I had 5th gen ZL1 wheels installed (kept aftermarket tires from my Vossens). Had new red Monster lugs installed too.

I also had ceramic pads installed about 6 weeks back.

I am getting a rough grinding sound when coming to a stop.

I checked for tire rub, have enough caliper clearance. Any other things to check?

unavailablezl1 · 03-31-2017, 10:33 AM

Quote:

Originally Posted by ajp

I had 5th gen ZL1 wheels installed (kept aftermarket tires from my Vossens). Had new red Monster lugs installed too.

I also had ceramic pads installed about 6 weeks back.

I am getting a rough grinding sound when coming to a stop.

I checked for tire rub, have enough caliper clearance. Any other things to check?

If there is no noise when driving, then it is the brakes for sure. It might just the new ceramic pads breaking in

TJay74 · 03-31-2017, 11:08 AM

Did you go thru the pad bedding process on the new pads?

ajp · 03-31-2017, 02:58 PM

I did go through the bedding process, not sure if I did it right.

A few more observations:

1) I hear the noise when slowing without braking.

2) I can kinda feel the grinding through the steering wheel, though that may be my imagination.

TJay74 · 04-01-2017, 08:11 AM

I would get the car up on jackstands on all 4 wheels and spin each wheel by hand to see if you can hear the noise if it was me.

Sunsnare98 · 04-02-2017, 08:23 PM

It could be tire noise.

ajp · 04-06-2017, 11:25 AM

Dealer checked it out today, said its the ceramics. Said they make a noise when slowing even when not actively applying brakes.

Sub · 04-06-2017, 11:28 AM

Look for gouging on the rotors - inside and out. a small line will indicate a rock or something may be stuck in there - this happened to me once.

You can also do a hard stop or two. If its a small rock chip it'll probably come loose/break off.

ajp · 04-06-2017, 11:43 AM

Quote:

Originally Posted by Sub

Look for gouging on the rotors - inside and out. a small line will indicate a rock or something may be stuck in there - this happened to me once.

You can also do a hard stop or two. If its a small rock chip it'll probably come loose/break off.

Dealer checked, said the rear right had a rock at one time, but didnt see anything.

Sub · 04-06-2017, 07:30 PM

probably a little shard left in there. just do some hard braking action.

03-31-2017, 10:20 AM	#1
ajp 50th Anniversary Vert Drives: Camaro 2017 50th Anniversary Join Date: Jul 2009 Location: AZ Posts: 2,315 View My Garage	Grinding noise when slowing... I had 5th gen ZL1 wheels installed (kept aftermarket tires from my Vossens). Had new red Monster lugs installed too. I also had ceramic pads installed about 6 weeks back. I am getting a rough grinding sound when coming to a stop. I checked for tire rub, have enough caliper clearance. Any other things to check? __________________

03-31-2017, 02:58 PM	#4
ajp 50th Anniversary Vert Drives: Camaro 2017 50th Anniversary Join Date: Jul 2009 Location: AZ Posts: 2,315 View My Garage	I did go through the bedding process, not sure if I did it right. A few more observations: 1) I hear the noise when slowing without braking. 2) I can kinda feel the grinding through the steering wheel, though that may be my imagination. __________________

04-06-2017, 11:25 AM	#7
ajp 50th Anniversary Vert Drives: Camaro 2017 50th Anniversary Join Date: Jul 2009 Location: AZ Posts: 2,315 View My Garage	Dealer checked it out today, said its the ceramics. Said they make a noise when slowing even when not actively applying brakes. __________________

04-06-2017, 11:28 AM	#8
Sub Drives: 2017 ZL1 Join Date: Oct 2016 Location: Ny Posts: 859	Look for gouging on the rotors - inside and out. a small line will indicate a rock or something may be stuck in there - this happened to me once. You can also do a hard stop or two. If its a small rock chip it'll probably come loose/break off. __________________ My Car Blog and mods. Previous Chevys: 2016 2ss, 2015 C7 z51, 2004 C5 Z06

04-06-2017, 07:30 PM	#10
Sub Drives: 2017 ZL1 Join Date: Oct 2016 Location: Ny Posts: 859	probably a little shard left in there. just do some hard braking action. __________________ My Car Blog and mods. Previous Chevys: 2016 2ss, 2015 C7 z51, 2004 C5 Z06

03-31-2017, 11:08 AM	#3
TJay74 Drives: 17 Camaro SS 1LE & 16 Sierra AT CC Join Date: Nov 2016 Location: Norman, OK Posts: 2,424	Did you go thru the pad bedding process on the new pads?

04-01-2017, 08:11 AM	#5
TJay74 Drives: 17 Camaro SS 1LE & 16 Sierra AT CC Join Date: Nov 2016 Location: Norman, OK Posts: 2,424	I would get the car up on jackstands on all 4 wheels and spin each wheel by hand to see if you can hear the noise if it was me.

04-02-2017, 08:23 PM	#6
Sunsnare98 Drives: 2017 camaro ss Join Date: Jan 2017 Location: Miami Posts: 264	It could be tire noise.

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