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Old 05-09-2019, 10:05 AM   #13
tecmec
 
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Drives: 2016 2SS
Join Date: Dec 2015
Location: WA
Posts: 141
I'm curious if this solves your issue. I had the same soft pedal issue after installing my GM big brake kit on my SS. I actually have the GM MDI interface, and so I have done a million ABS bleed cycles on the car. I was able to get a few small bubbles out, but have never been able to get the pedal feel to what I think it should be.

I didn't let the master run dry, so I'm not sure why it would have air in it. The brake line plumbing in these cars is funny though. The ABS module is above the passenger side wheel well, and we have lines running between there and the master, over the engine at the back of the firewall (if I'm remembering correctly). Those lines are a high point, and I imagine they would be a great place for air to collect, and would probably be almost impossible to evacuate. I was actually worried that if I disconnected the master, I'd just end up letting even more air into those lines, making things worse.

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