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

brake bleeding

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Old Apr 11, 2009 | 02:13 PM
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what's the proper method for bleeding brakes with an ABS system?

thanks
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Old Apr 11, 2009 | 02:44 PM
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I just bleed each wheel. You can get all fancy with it if you'd like but it doesn't really matter. I do this ten times a year if not more.
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Old Apr 12, 2009 | 12:17 AM
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as per the manuals. I installed speed bleeders since I work on the car alone.
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Old Apr 12, 2009 | 08:03 PM
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After about 10 years of owning my '94 the only thing that has given me good brakes was using a phoenix injector and reverse bleeding the brakes (worked great on the clutch too).
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Old Apr 12, 2009 | 11:00 PM
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Well, my Mitey Vac broke so I had to do it the old fashioned way and it worked fine (even though I knocked the catch can and my soda over so I had brake fluid and Pepsi all over the garage floor). It takes quite a few pumps to get 20 year old fluid out, but there's no reason to do anything at the ABS. Everyone I've seen is a pass through system and nothing is pressurized or doing anything with the motor off. Module rebuilds seem to be priced just a tad south of a grand and since the last thing I did is often the reason the next thing is broken, I thought it might be best to not even look at it. Complete job, including a new Master (which I bench bled) took about 36 ozs of fluid so you'll need a few cans for a good flush - oh and someone to pump the pedal!
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Old Apr 13, 2009 | 12:02 AM
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Originally Posted by SunCr
Well, my Mitey Vac broke so I had to do it the old fashioned way and it worked fine (even though I knocked the catch can and my soda over so I had brake fluid and Pepsi all over the garage floor).
I hope you cleaned up the Pepsi first. It's my understanding its much more corrosive than brake fluid.

Oh, and I have speed bleeders so I should be able to do the job without the female assistant.

thanks
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Old Apr 13, 2009 | 12:15 AM
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I just open the bleeders and stand by the master with a can of brake fluid and a can of beer. Just make sure when the master gets low to put the write can of fluid in. This takes a little longer that's why you may need a can of beer.
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Old Apr 13, 2009 | 01:38 AM
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One thing I have never found a definite answer on is if it is necessary to bleed the ABS system beind the drivers seat (I assume it bleeds just like the wheels, but I've never really checked). I didn't on mine and my brakes were awesome afterwards. I have heard some say you have to and some say that you don't.
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Old Apr 13, 2009 | 08:08 AM
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Originally Posted by black88z51
as per the manuals. I installed speed bleeders since I work on the car alone.
Bleed the wheel furthest from the M/C first. "Speed Bleeders"
are great if you work on your Vette by yourself.
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Old Apr 13, 2009 | 08:16 AM
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I bleed in this sequence RR, LR, RF, LF.

Another trick I use is to just set the brake fluid container on top of the master cylinder reservoir upside down, it won't overfill but will refill as the fluid level goes down and I don't have to keep going back and forth to keep topping it off.
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