Brake fluid flush procedure?
Thread Starter
Safety Car
Joined: Mar 2006
Posts: 4,547
Likes: 5,147
From: Chester VA
Brake fluid flush procedure?
Can a dealership perform a brake fluid flush without removing the wheels (2015 Z51)?
Or to ask it another way, do the brake calipers have an inboard bleeder screw that would allow a brake fluid flush to be performed without wheel removal?
TIA,
Larry
Or to ask it another way, do the brake calipers have an inboard bleeder screw that would allow a brake fluid flush to be performed without wheel removal?
TIA,
Larry
Burning Brakes
Joined: Jan 2021
Posts: 1,027
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From: Pittsburgh area
Usually always start with the furthest to the closest from the Master Cylinder.
Keep the cap on but loose & don't let it empty or of course you will pull air in.
Rock on Santana! Rock on!
Six decades strong!
93 Vette
74 Capri MK1 modified
Keep the cap on but loose & don't let it empty or of course you will pull air in.
Rock on Santana! Rock on!
Six decades strong!
93 Vette
74 Capri MK1 modified
Race Director
Joined: Apr 2000
Posts: 15,344
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From: Texas
If you want to read detail...https://www.corvetteforum.com/forums...ure-specs.html
You can also look at Post 11 here: https://www.corvetteforum.com/forums...-sequence.html
Tech Contributor
Joined: Oct 1999
Posts: 41,058
Likes: 9,820
From: Charlotte, NC (formerly Endicott, NY)
The C7 is a crisscross system....left rear / right front and vice versa. Drain the master cylinder and fill with fresh fluid. Jack up the rear of the car and do both rears. Once complete, do the fronts. It's not like the old days. I've never bled mine any other way and it's just fine.
If you want to read detail...https://www.corvetteforum.com/forums...ure-specs.html
You can also look at Post 11 here: https://www.corvetteforum.com/forums...-sequence.html
If you want to read detail...https://www.corvetteforum.com/forums...ure-specs.html
You can also look at Post 11 here: https://www.corvetteforum.com/forums...-sequence.html
Bill
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Instructor
Joined: Nov 2021
Posts: 111
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From: Canada
Sorry to top this up, But would like to know the proper order of wheel to be bled on the c7. Need to do a flush as its near 3 years now. Dealer wants $300 for it, fat chance lol. Also, is 1 bottle enough for the whole job?
Melting Slicks
Joined: Feb 2018
Posts: 2,183
Likes: 1,049
From: North Texas
Just did my 17. I used 10 16 once bottles to completely flush the system and I also activated the anti-lock system on each wheel to also flush it. Using a Motive Products power flusher, air only, you go through a lot of fluid very fast. I did this on every wheel. Just kept going round and round till all the fluid was bubble free and clear as can be. Fluid is cheap and it's a real hassle to put the car up on the QuickJack. Too much stuff in the garage and everything has to be moved to provide enough room to operate. Wanted to be sure that the flush was GTG the first time and not have to repeat the whole process.
Damm, those wheels are heavy when your 72.
Damm, those wheels are heavy when your 72.
Last edited by Tinkertech; Jun 14, 2022 at 08:30 AM.
Thread Starter
Safety Car
Joined: Mar 2006
Posts: 4,547
Likes: 5,147
From: Chester VA
)
Melting Slicks
Joined: Feb 2018
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Likes: 1,049
From: North Texas
Drifting
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From: Colo Spgs, CO
Which one do you use? Are you happy with it?
Tech Contributor
Joined: Oct 1999
Posts: 41,058
Likes: 9,820
From: Charlotte, NC (formerly Endicott, NY)
I use 2 500 ml (19.2 oz each) containers of brake fluid to flush the system without activating the ABS. If I accidentally get air in the ABS module I will bleed the system followed by driving the car and hitting the brake hard enough to activate ABS several times. Then I go home and bleed the system again. If I am lucky any air captured behind valves in the ABS module will have been freed to progress past the valve when it opened/closed during the hard braking and I will have a hard pedal again.
I don't worry about the small amount of fluid in the ABS module if I don't get air in the module. That has only happened once while I was struggling to get stainless brake lines installed on the car and the left front one gave me lots of problems and I didn't realize all of the brake fluid soaking my shirt and on the floor meant that air got in the module.
Bill
I don't worry about the small amount of fluid in the ABS module if I don't get air in the module. That has only happened once while I was struggling to get stainless brake lines installed on the car and the left front one gave me lots of problems and I didn't realize all of the brake fluid soaking my shirt and on the floor meant that air got in the module.
Bill
Last edited by Bill Dearborn; Jun 14, 2022 at 09:14 PM.
Race Director
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From: N. Alabama
Melting Slicks
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From: North Texas
Drifting
Joined: Mar 2022
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From: Indiana
Or you can do it the poor mans way. Get to a grassy area and get get up to 20 mph or so and hit the brakes hard enough to cycle the ABS. Do this 3-4 times. That will push fresh(er) fluid through the module, take the wheels back off and flush again. But, like Tinkertech mentioned, the easy way it to use the right tool to electronically do it. For me, I'd rather have it done properly. Easier and more thorough. $300 to flush sounds salty, find a competent indy shop. Still, even at $300, it not like your doing this even annually.