C6 Tech/Performance LS2, LS3, LS7, LS9 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Brake relay noise?

Thread Tools
 
Search this Thread
 
Old Dec 14, 2012 | 04:58 PM
  #1  
smdva's Avatar
smdva
Thread Starter
2nd Gear
 
Joined: Nov 2012
Posts: 2
Likes: 0
Default Brake relay noise?

I have a noticeable noise coming from the fuse box every time I apply the brakes. The dealer informs me this is the way the braking system is designed and the noise in normal.
Can anyone confirm their 2013 C6s do the same? Is there a fix even it is "normal"
Thanks, Steve
Reply
Old Dec 14, 2012 | 09:20 PM
  #2  
RicK T's Avatar
RicK T
Team Owner
10 Year Member
 
Joined: Sep 2005
Posts: 20,352
Likes: 568
From: Ventura County, Calif
Default

Yes, very common complaint......but interestingly not all cars do it and not all the ones that do do it are equally offensive.

Here's one member's recent solution:


Originally Posted by ELP_JC
Hey gang. As many of you have complained, the brake and reverse light relays make the car sound cheap. And all passengers ask what the hell is that noise . So removed the brake relay, wrapped it in HushMat (like Dynamat), and it's silent now.......

Here's a pic of the relay, located in the fuse panel in the passenger footwell, under the toe board:





If you're really industrious, another member went so far as to replace the mechanical relay with a Solid State Relay. Took some adapting but doable, and it's silent. If you want that thread let me know.
Reply
Old Dec 14, 2012 | 11:01 PM
  #3  
gbrtng's Avatar
gbrtng
Burning Brakes
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: May 2007
Posts: 965
Likes: 13
From: turn 12 at Road America or TX
Default

Originally Posted by smdva
I have a noticeable noise coming from the fuse box every time I apply the brakes. The dealer informs me this is the way the braking system is designed and the noise in normal.
Can anyone confirm their 2013 C6s do the same? Is there a fix even it is "normal"
Thanks, Steve
My 2013 coupe makes a chattering relay type of noise when I hit the brake pedal before pushing the start button. I haven't localized the noise but it seems to be coming from the center of the dashboard assy. Is this the noise everyone complains about? It lasts about one second and then is silent. Car has less than 300 miles and I think it was there from the beginning.

Take two - Chatter noise when hitting either the brake or start with no fob. Sounds like the noise is inside the dashboard near the start button.

Last edited by gbrtng; Dec 14, 2012 at 11:15 PM.
Reply
Old Dec 15, 2012 | 02:33 AM
  #4  
JCtx's Avatar
JCtx
Melting Slicks
15 Year Member
 
Joined: Dec 2006
Posts: 2,694
Likes: 106
Default

On the brake relay, I'm the one who wrapped it in 'Dynamat' and problem solved. Wanted to do the same with the reverse relay, but nobody has replied to my post, so will leave it alone. For some reason, the reverse relay is under that black cover with a bolt in the middle.

That relay racket when hitting the start button without the fob or without fully depressing the clutch (or not at all) is puzzling to me. Sounds like a hundred relays triggering all at once. And yes, right behind the panel, not by the fuse box. But perfectly normal too.
Reply
Old Dec 15, 2012 | 11:04 AM
  #5  
Mike's LS3's Avatar
Mike's LS3
Safety Car
15 Year Member
Liked
Community Favorite
Top Answer: 1
 
Joined: Nov 2007
Posts: 4,435
Likes: 874
From: Bay Area CA
Default

I heard that same noise after I opened up the fuse box in the passenger foot-well. After a few hard WOT, I no longer hear it. Maybe because my wife was trying to put the brakes on her side?
Reply
Old Jan 13, 2013 | 08:15 PM
  #6  
smdva's Avatar
smdva
Thread Starter
2nd Gear
 
Joined: Nov 2012
Posts: 2
Likes: 0
Default

Originally Posted by RicK T
Yes, very common complaint......but interestingly not all cars do it and not all the ones that do do it are equally offensive.

Here's one member's recent solution:





Here's a pic of the relay, located in the fuse panel in the passenger footwell, under the toe board:





If you're really industrious, another member went so far as to replace the mechanical relay with a Solid State Relay. Took some adapting but doable, and it's silent. If you want that thread let me know.
Thanks for the input, ordered Hushmat tonite.
smd
Reply
Old Jan 22, 2013 | 10:44 PM
  #7  
jkbronco's Avatar
jkbronco
Instructor
 
Joined: Jan 2013
Posts: 112
Likes: 0
Default

I hate to be the least bright one in the forum but can someone explain exactly what was done?
Reply
Old Jan 23, 2013 | 01:48 AM
  #8  
JCtx's Avatar
JCtx
Melting Slicks
15 Year Member
 
Joined: Dec 2006
Posts: 2,694
Likes: 106
Default

Originally Posted by jkbronco
I hate to be the least bright one in the forum but can someone explain exactly what was done?
Let's say the relay measures 1 sq. in. Cut a 1" x 3" piece of Dynamat (or similar) material, and cover the relay on one side, top, and the opposite side. Then cut two 1" x 1" squares and put them on the remaining 2 sides, and make sure to leave no gaps. I used black HushMat for the center tunnel (my car is CE black), and did this job with leftover pieces. Wanted to do the same to the reverse relay, but it's under that large cover with a bolt in the middle, so didn't want to mess with it. And don't have enough material left to do that entire black part, but might buy more and do just that. Good luck.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Jan 23, 2013 | 07:31 PM
  #9  
jkbronco's Avatar
jkbronco
Instructor
 
Joined: Jan 2013
Posts: 112
Likes: 0
Default

Thanks a lot - any worries about trapping heat?
Reply
Old Jan 24, 2013 | 12:05 AM
  #10  
JCtx's Avatar
JCtx
Melting Slicks
15 Year Member
 
Joined: Dec 2006
Posts: 2,694
Likes: 106
Default

Originally Posted by jkbronco
Thanks a lot - any worries about trapping heat?
Not inside the car man, with A/C. And how long do you stay on the brakes? Plus it's not much current at all, and there's a gap at the bottom anyway. Zero worries here.
Reply
Old Mar 8, 2013 | 08:37 AM
  #11  
bucwheat's Avatar
bucwheat
Race Director
15 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: Oct 2007
Posts: 14,108
Likes: 26
From: 4th on the list of top 100 in USA Ga.
Default

My 2012 doesn't make the noises.
Reply
Old Mar 8, 2013 | 06:29 PM
  #12  
jkbronco's Avatar
jkbronco
Instructor
 
Joined: Jan 2013
Posts: 112
Likes: 0
Default

wow--- mine does
Reply

Get notified of new replies

To Brake relay noise?





All times are GMT -4. The time now is 01:11 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE