99ssleeper

iTrader: (98)

Some people that frequent this part of the forum probably remember my problems with the pedal sticking to the floor. I tried Ranger's siphoning and refilling of the reservoir procedure 20-30 times, and towards the end the fluid was staying relatively clean and the pedal wasnt sticking as much.

Last night I pulled the trans and hydraulics to put in a Textrailia and after getting the master cyl off I removed all the lines to drain the fluid out to see what it looked like. In the master it was still totally black. Im not saying the fresh brake fluid I put in was now discolored...Im saying the fluid was black as tar like none of it had ever circulated. After seeing that, I understand why I was having the problems and I feel the only way to cure the sticking pedal issue is to totally flush the system...not do the siphon/refill method because it just doesnt circulate enough.

And thanks to GM they made the bleeder impossible to reach I'll be bench bleeding the master/slave before they go in.

Oh...also thanks to GM for making the master cyl such an easy job to remove

wrencher

iTrader: (2)

Ranger's method also covers that, the complete flush of the system is necassary.
That is the only way to get that nasty fluid in the slave out of there.

99ssleeper

iTrader: (98)

what i mean is that even with siphoning/refilling after a fluid flush, whatever is added isnt going to mix with what is already in the master and slave since what i did had no effect on what was already in the lower parts of the hydraulic system. maybe others will have better luck...im just saying what i found when i pulled it apart.

it was clean fluid at the top, and black in the bottom.

wrencher

iTrader: (2)

When you bleed the system out after siphoning it out of the reservoir & adding new fluid. The fresh fluid will push the old out. Then the system will be cleaned out.
Thats what ranger's describing in his write up.

99ssleeper

iTrader: (98)

the way i understood his method is adding the new fluid, pumping the pedal til it mixes, then siphoning and repeating...not bleeding. i think i remember him saying it saves a lot of time and mess on the garage floor.

wrencher

iTrader: (2)

It goes on to say you can go on to bleeding the system out as well. If your fluid is really poor I would highly suggest flushing by bleeding the system out.

Ranger

Thanks, wrencher.

Keep in mind that my protocol is suggested as the starting point and it includes 20-30 strong, aggressive pedal pumps with each fresh fluid refill of the reservoir. Those strong pumps make the slave articulate and create flow. Rapid-fire articulation helps scour and dislodge crud.

Ranger

99ssleeper

iTrader: (98)

everything works great now...im just saying that the siphon/refill method didnt work for me, thats all.