Cant bleed the brakes on 95 Chevy K-2500

[chevy-tr...@home.com]

The brakes were working fine with a good pedal. But one front pad was
down to the metal. I replaced the pads on both front wheels. As soon
as I finished, I stepped on the pedal and it went right to the floor. I
soon noticed brake fluid shooting all over the engine, found the brake
line from the ABS to the front left wheel was leaking badly. It was
pretty rusty, so I suppose when I used a C-clamp to push in the caliper
pistons, I blew that line. I replaced the line, and no more leaks.

I have bleed the brakes and bled them some more. Used almost a quart of
fluid, making sure the master cyl. did not go dry. I still have no
pedal. Or, I should say the pedal goes all the way to the floor, but it
does stop the truck, but it's scary driving it that way.

This is the first vehicle that I've had that has ABS brakes. I've never
had this much trouble bleeding brakes. Is there some trick to bleeding
these ABS brakes?

I should mention that I bleed them by pumping the pedal, then holding it
and opening the bleeders, and repeat... and repeat again, etc...
(The same way I've always bled brakes on older cars without ABS).

Thanks

[Gil]

Chevy pickups of this era are known for rusted brake lines. If you
Google it you will find all kinds of info about it.
I had the same problem with a 2003 Silverado. Started with one brake
line leak and while bleeding them three others developed in different
areas. Ended up replacing all of the original steel lines to solve the
problem.
If you are still having to add brake fluid then you have more leaks
somewhere. If the fluid level is now holding steady but the pedal still
goes to the floor then perhaps when you pushed the caliper pistons back
loose crap from inside the lines got into the master cylinder and the
seals on the piston are now leaking.

Gil

[bilb2765]

Major no no is to force fluid back through the ABS stuff.
That could be your problem. Sorry

[Steve W.]

Sounds like you have air in the ABS unit. Depending on which system it
has you may need a scan tool to cycle the ABS unit while bleeding, OR it
may have the earlier unit that you bleed using bleeders in the unit itself.


--
Steve W.

[Martin Riddle]

"Steve W." <csr...@NOTyahoo.com> wrote in message
news:ku376n$loa$1...@dont-email.me...

One of the adl pins will cycle the abs briefly. I don't recall which
one and my searches have failed to provide it.
But it can be done.

Cheers