C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

HELP !! brake problem

Thread Tools
 
Search this Thread
 
Old Feb 13, 2011 | 02:46 PM
  #1  
Mohammed_z's Avatar
Mohammed_z
Thread Starter
Drifting
15 Year Member
Liked
 
Joined: Jan 2010
Posts: 1,624
Likes: 48
From: Saudi Arabia
Default HELP !! brake problem

While I was driving I noticed the brake is hard to press , so I decided to drain the brake lines and put new oil brake. I guessed the lines were dirty since the oil is too old , and it was black

opened the bolt that connected to the calibers and pressed the brake several times to allow the oil to drain....had hard time putting the stupid bolt that has small hole for the oil !! I don't know if I did it the wrong way !! but that bolt was really annoying ...


after doing that ::::::

ACR , ABS service lamps turned on !!! and also this signal ! . under the brake lamp

I opened the lines again...pressed the brake more and more ...the service lamps turned off ...BUT !!

the brake is soft and hardly stops the car while driving !!!

what happened ?

Last edited by Mohammed_z; Feb 13, 2011 at 02:48 PM.
Reply
Old Feb 13, 2011 | 03:42 PM
  #2  
sailorsteve's Avatar
sailorsteve
Drifting
Supporting Member
15 Year Member
Liked
Loved
 
Joined: Jun 2010
Posts: 1,853
Likes: 8
From: Westerly RI
Default

Did you add new fluid to the master cylinder as you pumped it out the bleeders? You may need some technical assistance to bleed the brakes properly.
Reply
Old Feb 13, 2011 | 03:45 PM
  #3  
Mohammed_z's Avatar
Mohammed_z
Thread Starter
Drifting
15 Year Member
Liked
 
Joined: Jan 2010
Posts: 1,624
Likes: 48
From: Saudi Arabia
Default

Originally Posted by sailorsteve
Did you add new fluid to the master cylinder as you pumped it out the bleeders? You may need some technical assistance to bleed the brakes properly.

yea I did that.
Reply
Old Feb 13, 2011 | 03:47 PM
  #4  
383vett's Avatar
383vett
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2003
Posts: 17,698
Likes: 1,667
From: moraga ca
Default

You shouldn't have removed the bleeder valves from the calipers. They should be cracked open, the brake pedal depressed and tightened up before the pedal allowed to return to the top. This pushes fluid and air out the bleeders and air is not allowed to return.
Reply
Old Feb 13, 2011 | 03:50 PM
  #5  
Mohammed_z's Avatar
Mohammed_z
Thread Starter
Drifting
15 Year Member
Liked
 
Joined: Jan 2010
Posts: 1,624
Likes: 48
From: Saudi Arabia
Default

Originally Posted by 383vett
You shouldn't have removed the bleeder valves from the calipers. They should be cracked open, the brake pedal depressed and tightened up before the pedal allowed to return to the top. This pushes fluid and air out the bleeders and air is not allowed to return.

That was the mistake I found when I tried to put the bolt back with the small hole directing to the calibers hols.....

so do I need to the this from the beginning ? I did the front brakes only !!!
Reply
Old Feb 13, 2011 | 03:57 PM
  #6  
Mohammed_z's Avatar
Mohammed_z
Thread Starter
Drifting
15 Year Member
Liked
 
Joined: Jan 2010
Posts: 1,624
Likes: 48
From: Saudi Arabia
Default

the bolt was something like this !!

Reply
Old Feb 13, 2011 | 04:04 PM
  #7  
383vett's Avatar
383vett
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2003
Posts: 17,698
Likes: 1,667
From: moraga ca
Default

Crap, Mohammed, that was the wrong bolt! That is the brake line fitting. The bleeder valve is a small valve at the top of each caliper.
Reply
Old Feb 13, 2011 | 04:10 PM
  #8  
Mohammed_z's Avatar
Mohammed_z
Thread Starter
Drifting
15 Year Member
Liked
 
Joined: Jan 2010
Posts: 1,624
Likes: 48
From: Saudi Arabia
Default

Originally Posted by 383vett
Crap, Mohammed, that was the wrong bolt! That is the brake line fitting. The bleeder valve is a small valve at the top of each caliper.

I feel guilty...

what do I do now ?? repeat this with only front brakes ?

and how can I make sure that the brake line fitting is aligned with the caliber hole !!
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

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

 Joe Kucinski
story-1

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

 Verdad Gallardo
story-2

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

 Joe Kucinski
story-3

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-4

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-5

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-6

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-7

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-8

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-9

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
Old Feb 13, 2011 | 04:14 PM
  #9  
sailorsteve's Avatar
sailorsteve
Drifting
Supporting Member
15 Year Member
Liked
Loved
 
Joined: Jun 2010
Posts: 1,853
Likes: 8
From: Westerly RI
Default

Originally Posted by Mohammed_z
I feel guilty...

what do I do now ?? repeat this with only front brakes ?

and how can I make sure that the brake line fitting is aligned with the caliber hole !!
Suggest you try to get some assistance- brakes are essential! You have to reassemble that fitting very carefully and bleed through the bleeder bolt.
Reply
Old Feb 13, 2011 | 05:52 PM
  #10  
383vett's Avatar
383vett
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2003
Posts: 17,698
Likes: 1,667
From: moraga ca
Default

You don't have to align the holes. Just put it together the way it came apart. Then bleed using the bleeder valves.
Reply
Old Feb 13, 2011 | 06:24 PM
  #11  
Sidney004's Avatar
Sidney004
Melting Slicks
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jun 2004
Posts: 3,253
Likes: 2
From: Castro Valley CA
Default

Bleed the brakes as described above to get operational and then buy some Speedbleeders:
http://speedbleeder.zoovy.com/
Reply

Get notified of new replies

To HELP !! brake problem





All times are GMT -4. The time now is 11:44 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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