Brake related question
Thread Starter
5th Gear
Joined: Aug 2019
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From: Cross Junction, VA
Brake related question
Hi - I have a 2004 base Corvette. Installed new brake system and bled the lines but still have air. Can someone tell me if the ABS module has to be bled also? It is stock unit to my knowledge.
Thx
Ron
Thx
Ron
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From: South Hill Wa
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If you got air in the ABS pump then yes it will need to be bled out and likely need to be cycled to get it out. You can do this with a Tech 2 computer or you can do it the redneck way by bleeding the brakes as best you can and then drive the car to a slick piece of road and lock the brakes up enough to activate the pump. Then rebleed the system and you should be good to go.
I also prefer pressure bleeding but that's just me. The old school way works too.
Base or not C5 brake systems are the same across all.
I also prefer pressure bleeding but that's just me. The old school way works too.
Base or not C5 brake systems are the same across all.
Team Owner
Joined: May 2001
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From: Western NY
This issue concerns me, too, as my C-5 is getting close to 20 years of age, and I know that brake lines don't last forever. Therefore, I see myself replacing them within the next year or two, and having to bleed the lines.
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Wasn't a big deal for me to bleed it the old school way and drive it to work the next day with a semi-soft pedal and have work bleed it with the tech 2. Any GM dealer will be able to do it.
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From: South Hill Wa
2022 C5 of the Year Finalist - Modified
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Another pro tip, if you do manual old school brake bleeding, and you live in a corrosive environment I recommend not pumping the pedal all the way to the floor. Doing this can run the master cylinder seals through trash and ruin the master.
I've done it twice in my life and after the second failure I switched over to pressure bleeding.
I've done it twice in my life and after the second failure I switched over to pressure bleeding.
Thread Starter
5th Gear
Joined: Aug 2019
Posts: 5
Likes: 0
From: Cross Junction, VA
If you got air in the ABS pump then yes it will need to be bled out and likely need to be cycled to get it out. You can do this with a Tech 2 computer or you can do it the redneck way by bleeding the brakes as best you can and then drive the car to a slick piece of road and lock the brakes up enough to activate the pump. Then rebleed the system and you should be good to go.
I also prefer pressure bleeding but that's just me. The old school way works too.
Base or not C5 brake systems are the same across all.
I also prefer pressure bleeding but that's just me. The old school way works too.
Base or not C5 brake systems are the same across all.
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From: South Hill Wa
2022 C5 of the Year Finalist - Modified
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Is the pedal soft? Can you pump the brakes up at all? or is it all the way to the floor?
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Thread Starter
5th Gear
Joined: Aug 2019
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From: Cross Junction, VA
Thanks Mr. Black and Adwest52. I changed pads, rotors, calipers, and hoses. Used all Wilwood products. Calipers are fixed not sliding. Pedal goes to near floorboard but does engage and stops vehicle in solid/firm manner. However with slight pump the brakes engage much higher.
Geotechengr
Geotechengr
