Can anyone tell me what this part is called? It's the block that splits the 2 lines from the master cylinder to the 4 individual lines of the brakes.


I just replaced my back brakes. New lines, new wheel cylinders, new brake shoes after my wheel cylinder busted and I broke a line trying to get it off, and I drove a week with a blocked off back brake but now my back right line gets no fluid. I tracked it down to whatever that distribution block is called by taking off that line and pumping my brakes once no fluid came out but the other 3 lines fluid came out. So I guess I have to replace whatever that block is called so I can get fluid to that back passenger side brake and bleed all 4.

So does anyone know what that's called or how to fix that single line not getting fluid?

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Brake modulator valve about $800 brand new, better to find used.

Doug in P.R.


92 Pontiac Sunbird LE, 2.0, AT, Red / Black with Grey 155K miles. Hurricane Maria Survivor ! ( It takes a licking and keeps on ticking ! ).....in Salinas, Puerto Rico!

Is you ABS light on?

You can try bleeding the ABS system first. Here is a write up on it:
https://www.aa1car.com/library/abs_bleeding.htm
You might also find something on YouTube covering it too.

If that doesn't fix it, you can, check ebay. There are quite a few used ones listed for very good prices. Though you can likely find one in a local junk yard too.

I am not sure if you can do an ABS delete on a 3rd gen or not. If so, it is likely covered somewhere here on the forums.

Good luck.