Ok, I a bled the crap out of it. I did the bleeder at the abs unit,
then did all the wheels again started and RR, the LR, RF, LF. I ran
about 3qts of fluid thru it. At all wheels I have clean fluid and no
bubbles coming out. Took it out and it still has very little braking.
Pedal goes probably 3/4 of the way to the floor till any sort of braking
action happens. It will stop, but not very fast and would not stop
pulling a trailer. Even if the back brakes were not fully adjusted out
yet it would be better than this. When I pump the pedal it does return
but its not an instant return as soon as you left off the pedal. Also,
when just holding steady pressure at about the half pedal travel or oven
3/4 travel pedal does not sink it seems to stay steady. Also, the red
brake lite is on that would come on if the parking brake is on, the
manual says this indicates a brake problem. No joke. I really do not
see how I could still have air in the lines. Brakes are worse than they
were before I replaced the rear wheel cylinders but they were never very
good in the first place. The front calipers and hoses are fairly new also.
On 5/22/2019 10:02 PM, fmiser via Mercedes wrote:
Kaleb wrote:
... it just feels like it has no
brakes at all, pedal seems to be going nearly to the floor. I
am sure the rear drums are not adjusted all the way out yet but
I would not think that would cause it to go to the floor.
If there is not resistance for the slave cylinders to push
against, much of the pressure of the master cylinder will not do
much. If that is the case, there should be front brakes - but the
pedal will not feel very stiff.
Does the pedal come up when if you pump it? That points to
"loose" slaves and not air.
Does the pedal sink under steady pressure? That is a leak - most
often past the piston seals in the master cylinder.
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