C5 Corvette brake fluid flush
Thread Starter
7th Gear
Joined: May 2023
Posts: 7
Likes: 0
C5 Corvette brake fluid flush
Good morning everyone having the brakes flushed on my C5 my question is mechanic is going to use a vacuum bleeder and completely bleed the system will this put fresh fluid into my ebcm my mechanic says yes but I am inclined to disagree with him thank you gary
Tech Contributor
Joined: Jan 2007
Posts: 19,416
Likes: 1,144
From: Dyer, IN
Tech Contributor
Joined: Jan 2007
Posts: 19,416
Likes: 1,144
From: Dyer, IN
An "automated bleed" is only necessary if there is reason to believe air has been introduced upstream to the EBCM.
Advanced
Joined: Dec 2014
Posts: 96
Likes: 22
From: Newton Iowa
A "code reader" will not perform an "automated bleed". You need a capable scanner or Tech2.
An "automated bleed" is only necessary if there is reason to believe air has been introduced upstream to the EBCM.
Pointless if you are trying to remove air from the system, or just bleed the brakes. All this will do is exercise the system.
An "automated bleed" is only necessary if there is reason to believe air has been introduced upstream to the EBCM.
Pointless if you are trying to remove air from the system, or just bleed the brakes. All this will do is exercise the system.
Tech Contributor
Joined: Jan 2007
Posts: 19,416
Likes: 1,144
From: Dyer, IN
...and the OP wants the fluid out of the EBCM.....but does he know why, or if it is even necessary? ......or how the service manual speaks to the subject?
Post your scanner model for the other DIYers.
Advanced
Joined: Dec 2014
Posts: 96
Likes: 22
From: Newton Iowa
Lucky have a nice day bickering just screws up the thread for others.
Last edited by BHauber; Oct 11, 2024 at 02:41 PM.
Tech Contributor
Joined: Jan 2007
Posts: 19,416
Likes: 1,144
From: Dyer, IN
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Burning Brakes
Joined: Jun 2007
Posts: 772
Likes: 213
From: Auburn Ohio
Automated bleed
The Real Deal
Pushes new fluid through the Entire System
Very important as these cars are now Over 20 years old
Brake Fluid is Hydrophilic
Total Flush of Fluid is Critical to Maintain the integrity of the Steel lines which are subject to internal corrosion
Save The Wave
USA-1
The Real Deal
Pushes new fluid through the Entire System
Very important as these cars are now Over 20 years old
Brake Fluid is Hydrophilic
Total Flush of Fluid is Critical to Maintain the integrity of the Steel lines which are subject to internal corrosion
Save The Wave
USA-1
Last edited by nitromainia; Oct 11, 2024 at 09:31 PM.
Melting Slicks
Joined: Sep 2021
Posts: 2,555
Likes: 1,213
The OP is asking if the EBCM is somehow closed off when the ABS is not being activated.
If it isn't, his mechanic's method is fine.
If it is, his mechanic's method will leave old brake fluid inside the EBCM.
If it isn't, his mechanic's method is fine.
If it is, his mechanic's method will leave old brake fluid inside the EBCM.
Drifting
Joined: Sep 2009
Posts: 1,862
Likes: 594
From: Prescott, Arizona
In my view, the OP's question is answered by Smoken1.
That said, I have changed brake fluid six times, twice by pressurizing the master cylinder, four times using speed bleeders, by far the easiest method. I do not worry about fluid left in the EBCM.
Meanwhile for track guys, I have long used ATE Typ 200 brake fluid.
https://thebuildjournal.com/tech-gui...parison-guide/
That said, I have changed brake fluid six times, twice by pressurizing the master cylinder, four times using speed bleeders, by far the easiest method. I do not worry about fluid left in the EBCM.
Meanwhile for track guys, I have long used ATE Typ 200 brake fluid.
https://thebuildjournal.com/tech-gui...parison-guide/
Racer
Joined: Feb 2017
Posts: 321
Likes: 142
From: South Carolina
Once a car's Brake Master is about 8 years old you need to be careful with their seals. Using a pressure bleeder that puts fluid and pressure at the BMC cap can damage your seals very easily if using a high PSI.
The same can be said for a vacuum sucking at the brake lines. I would recommend using the Advanced Scan Tool (not a code reader...) to do the automated bleed that does force a lot of fluid and air out the system. It does a good job and with a hand style fluid pump you can get everything handled very easily.
The same can be said for a vacuum sucking at the brake lines. I would recommend using the Advanced Scan Tool (not a code reader...) to do the automated bleed that does force a lot of fluid and air out the system. It does a good job and with a hand style fluid pump you can get everything handled very easily.