C4 General Discussion General C4 Corvette Discussion not covered in Tech

Brake problem

Thread Tools
 
Search this Thread
 
Old May 14, 2017 | 07:29 PM
  #1  
Jerry Roubos's Avatar
Jerry Roubos
Thread Starter
Instructor
 
Joined: Feb 2012
Posts: 216
Likes: 1
From: Hemet California
Default Brake problem

I went for my normal Sunday cruse today. During the trip I developed a problem. I suddenly noticed that the brake pedal went to the floor when I made a stop. The car did stop, so no accident. I got out and checked the fluid reservoir which I found full. I looked for leaks but found none.
I got back in the car, started it and tried the brakes which worked fine except the pedal slowly went to the floor. When I pumped the brakes I had pedal and the brake warning light went out but if I held my foot on the pedal it would slowly go to the floor and the brake warning light came back on. I made it home ok.
My diagnosis would be a master cylinder failure, am I correct? I would like some input before I order one.
Thanks
86 Corvette convertible

Last edited by Jerry Roubos; May 14, 2017 at 07:33 PM. Reason: Forgot to include year
Reply
Old May 14, 2017 | 07:37 PM
  #2  
Komiller118's Avatar
Komiller118
Racer
All Eyes On Me
Liked
Loved
Community Favorite
 
Joined: Mar 2017
Posts: 288
Likes: 13
From: Engelhard NC
Default

Those symptoms do sound like a m/c failure.
Reply
Old May 14, 2017 | 07:54 PM
  #3  
Wildride's Avatar
Wildride
Burning Brakes
Veteran: Air Force
25 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
 
Joined: Sep 1999
Posts: 786
Likes: 31
Cruise-In II Veteran
Default

Not that uncommon. Happened to me. Master cylinder seals failed. For a real horror story read this post:

https://www.corvetteforum.com/forums...io-photos.html
Reply
Old May 14, 2017 | 09:37 PM
  #4  
A Peter C4's Avatar
A Peter C4
Burning Brakes
 
Joined: Jun 2016
Posts: 761
Likes: 66
From: Fitzwilliam New Hampshire
Default

Are there any signs of fluid leaks along any of the metal lines or at the rubber hoses at the calipers? If no leaks are found then master cylinder failure is most likely problem.

Last edited by A Peter C4; May 14, 2017 at 09:40 PM.
Reply

Get notified of new replies

To Brake problem





All times are GMT -4. The time now is 06:52 PM.

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