ABS Module leaking from black plug
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Teching In
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Joined: Oct 2006
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From: Katy (By GOD) Texas
ABS Module leaking from black plug 
I installed a 3 channel diff in my 4 channel car, couldn't get ABS to work so i swapped the 4 channel back in. Went to bleed the brakes and i'm not getting anything to the back yet, and there was a masive sucking sound at the ABS module. There was a large leak there.
I've turned the car one trying to cycle the ABS and this didn't fix it.
The car sat jacked up in the rear for 2 months while i was offshore. Is this a check valve or a known replaceable part? Been raining, will remove the cover and check out the leak.
Thanks, Jay
Last edited by bigike; Nov 22, 2014 at 12:55 PM.
the abs module needs to be activated to bleed it. this can only be done by using a tech 2 scan tool. There are some folks on here that say it can be done by spinning the wheels to activate the abs but i have never tried it like that so I can't verify. search bleeding brakes on here and you will find what I'm talking about.
On The Tree
Joined: Jul 2005
Posts: 161
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I think it needs to be replaced since I don't think its serviceable. mine just started doing this the other day. eventually leading to a total loss of brakes 
GM parts doesn't list a TCS pump so it eBay time I guess. boo
GM parts doesn't list a TCS pump so it eBay time I guess. boo Last edited by kookamunga; Apr 22, 2019 at 09:28 PM.
