CorvetteForum - Chevrolet Corvette Forum Discussion

C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Hanging off my brake switch

Thread Tools
 
Search this Thread
 
Old Oct 2, 2025 | 06:08 PM
Share
  #1  
Mechanic68's Avatar
Mechanic68
Thread Starter
Intermediate
All Eyes On Me
Liked
 
Joined: Nov 2017
Posts: 40
Likes: 4
From: Maryland
Default Hanging off my brake switch
This is hanging off my brake switch. I'm not exactly sure what it is.. anyone know why it would be here? Thanks
This is hanging off my brake switch. I'm not exactly sure what it is.. anyone know why it would be here? Thanks
Reply
0
Old Oct 2, 2025 | 06:20 PM
Share
  #2  
Piersonpie's Avatar
Piersonpie
Melting Slicks
Shutterbug
Loved
Community Favorite
Top Answer: 5
 
Joined: Apr 2021
Posts: 2,714
Likes: 2,162
From: Minnesota
Default
Based on those connectors it looks aftermarket. Cruise control?

Edit: I’ve never seen those connectors used in an OEM application before, neat!
Last edited by Piersonpie; Oct 3, 2025 at 10:57 AM.
Reply
1
Old Oct 2, 2025 | 06:35 PM
Share
  #3  
bruiser's Avatar
bruiser
Melting Slicks
15 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Active Streak: 120 Days
 
Joined: Feb 2007
Posts: 2,709
Likes: 269
From: S.E. MI
St. Jude Donor '15
Default
I believe that is just a noise suppressor capacitor to prevent noise in the radio when pressing the brake
Reply
2
Old Oct 2, 2025 | 06:43 PM
Share
  #4  
Mechanic68's Avatar
Mechanic68
Thread Starter
Intermediate
All Eyes On Me
Liked
 
Joined: Nov 2017
Posts: 40
Likes: 4
From: Maryland
Default
Originally Posted by bruiser
I believe that is just a noise suppressor capacitor to prevent noise in the radio when pressing the brake
It's definitely going away. I'm thinking you're right...
Reply
0
Old Oct 2, 2025 | 10:30 PM
Share
  #5  
barkingrats's Avatar
barkingrats
1967 Pedal Car Champion
Supporting Gold
 
Joined: Mar 2020
Posts: 9,137
Likes: 4,248
From: US-PNW
Default
It's an M-80!

No, Bruiser is right, it's a condenser to address radio noise. #7 in the diagram below; View B shows the blue connectors. Note there's another one (#6) close by.


Reply
2
Old Oct 3, 2025 | 02:02 AM
Share
  #6  
Eliredandblack's Avatar
Eliredandblack
Melting Slicks
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Feb 2018
Posts: 2,327
Likes: 721
From: Marietta GA
Default
They were compactors installed by dealers for radio noise suppression, I believe for AM Stations. My 73 has them.
Reply
1
Old Oct 3, 2025 | 02:09 AM
Share
  #7  
Mechanic68's Avatar
Mechanic68
Thread Starter
Intermediate
All Eyes On Me
Liked
 
Joined: Nov 2017
Posts: 40
Likes: 4
From: Maryland
Default
Surely looks like an m80 😂

Wow.. nice investigation and finding...
Reply
0
Old Oct 3, 2025 | 09:35 AM
Share
  #8  
barkingrats's Avatar
barkingrats
1967 Pedal Car Champion
Supporting Gold
 
Joined: Mar 2020
Posts: 9,137
Likes: 4,248
From: US-PNW
Default
Originally Posted by Eliredandblack
They were compactors installed by dealers for radio noise suppression, I believe for AM Stations. My 73 has them.
They were factory installed if a car got a radio - the AIM illustration shows them.
Reply
1
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 Oct 3, 2025 | 10:00 AM
Share
  #9  
Richard454's Avatar
Richard454
Le Mans Master
20 Year Member
Active Streak: 30 Days
Top Answer: 1
Top Answer: 3
 
Joined: May 2003
Posts: 8,877
Likes: 3,556
From: Fernandina Beach FL
2023 Restomod of the Year finalist
2020 C3 of the Year Winner - Modified
Default
Originally Posted by Mechanic68
Surely looks like an m80 😂

Wow.. nice investigation and finding...
If you connect it to 120AC- it will blow up like a M80....
It's rolled up aluminum foil...I learned that as a kid- and I still have all my fingers!!!
Reply
1
Old Oct 3, 2025 | 11:37 AM
Share
  #10  
Mechanic68's Avatar
Mechanic68
Thread Starter
Intermediate
All Eyes On Me
Liked
 
Joined: Nov 2017
Posts: 40
Likes: 4
From: Maryland
Default
Originally Posted by Richard454
If you connect it to 120AC- it will blow up like a M80....
It's rolled up aluminum foil...I learned that as a kid- and I still have all my fingers!!!
Ahhh yes.. I too enjoyed a nice explosive as a young man.. Richard!. I've been eyeballing those electric headlight conversion kits you sell on eBay. Maybe a few members here might join me for a group sale purchase?
Reply
0
Old Oct 3, 2025 | 07:02 PM
Share
  #11  
LowOptions's Avatar
LowOptions
Instructor
Liked
Loved
Community Favorite
 
Joined: Apr 2021
Posts: 104
Likes: 65
From: Southern New England USA
Default
Originally Posted by Eliredandblack
They were compactors installed by dealers for radio noise suppression, I believe for AM Stations. My 73 has them.
Capacitors.
Reply
0

Get notified of new replies

To Hanging off my brake switch

Back to Subforum
C3 Tech/Performance
View Next Unread
Question on Brake distribution switch




Click for Advanced Search
Reply Closed Thread Share
Forum Jump
Trending Topics

All times are GMT -4. The time now is 10:24 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