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 03:37 PM.

story-0
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
story-1
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-2
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-3
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-4
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-5
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-6
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-7
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-8
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-9
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE