Did the rear drums myself a yr ago, recently the wheel
cylinders had to be changed,
and Im told the front pads still are in good shape. One
Rotor had to be changed because
the truck sat for 12 yrs at a dealer and it literally fused
to the hu with the rust...one of the rear drums
had the same thing happen, never saw that before.
Anyhow aside from one rear brake line going out since then,
been good however noticed
if I am at a light and there is a slight incline downward
like at the bottom of a hill, I can geel the pedal
slowly going down. I can pump it back up but usually it
still falls and you can hear the brakes creeking
in the front as the pads dont grip as good and the truck
starts to creep forward....so Im thinking master
cyl, as its probably the one in there since 1998. I dont
think theres been any fluid loss, it seems full of fluid
and topped off.
If in neutral seems to not happen as much...today I was at
Burger King and just sat there on a level area
with my foot on the pedal and it was rock solid.
Other thing noticed dunno if its related is the drivers side
rotor (which is new) seems to vibrate when you go down
a fairly steep hill and ride the brake down to stay in the
speed limit posted.
I was told that in 4wd that wheel becomes the front drive
wheel, not sure is thats important or not regarding this,
but also both front wheel bearings were replaced last yr,
and that one seems to have a hard time keeping the center cap
on for a long while. I check to see if any of the hubcaps
can be pushed in after long miles of driving and that
one is usually a little loose and would come off eventually,
already lost (2) of them, so I was wondering if that
means the wheel bearing on that side is a little questionable?
A soft pedal indicates air in the system, and brake fluid is hygroscopic
so moisture increases, which will cause various sometimes expensive problems. This is worse just sitting, as there is no heat to drive out moisture.
When you do your full bleed, dark or discolored brake fluid will confirm that it was overdue for a purge after sitting 12 years.
--
Andrew Muzi
am@yellowjersey.org
Open every day since 1 April, 1971
Thanks for the comments.
When the drivers rear wheel cylinder went,
the brake feedline to it ruptured, and they custom made a
new one
from the "Tee" fitting on the axle, which they said is a
relief pressure valve,
is theres too much pressure thats suppose to activate I guess.
So when I was driving with the ruptured line, lost of fluid
escaped, had
to fill the master with fluid 2 times, so its more or less had
a fluid flush n fill.
At some point he said there was still some air trapped in
the system
and if I drove and hit a sharp bump that could force the
bubble back up into the
master cylinder and act like a bleeding.
When the wheel cylinders were changed the shoes on that side
had some fluid on them
and they said good idea to change them or they can shoot
them with brake clean and hope for the
best so I had them do that rather than a new set of shoes.
One day there was smoke coming out of that wheel, it was
some fluid burning off
the shoes so took it back for a check to the same shop, he
said the shoes were stuck
to the drum on that side. His boss would not let him put it
on the lift and open
that side unless I paid a fee upfront, so he looked at it in
the parking lot.
He took a hammer and screwdriver and went under that side
and banged it a few times
and had me try the pedal again and it came back up and has
been fixed since.
He also may have knocked an air bubble out of that side, as
a different mechanic did the
cylinder job out of state.
A soft pedal indicates air in the system, and brake fluid
is hygroscopic so moisture increases, which will cause
various sometimes expensive problems. This is worse just
sitting, as there is no heat to drive out moisture.
When you do your full bleed, dark or discolored brake
fluid will confirm that it was overdue for a purge after
sitting 12 years.
--
Andrew Muzi
am@yellowjersey.org
Open every day since 1 April, 1971
Did the rear drums myself a yr ago, recently the wheel cylinders had to
be changed,
and Im told the front pads still are in good shape. One Rotor had to be changed because
the truck sat for 12 yrs at a dealer and it literally fused to the hu
with the rust...one of the rear drums
had the same thing happen, never saw that before.
Anyhow aside from one rear brake line going out since then, been good however noticed
if I am at a light and there is a slight incline downward like at the
bottom of a hill, I can geel the pedal
slowly going down. I can pump it back up but usually it still falls and
you can hear the brakes creeking
in the front as the pads dont grip as good and the truck starts to creep forward....so Im thinking master
cyl, as its probably the one in there since 1998. I dont think theres
been any fluid loss, it seems full of fluid
and topped off.
If in neutral seems to not happen as much...today I was at Burger King
and just sat there on a level area
with my foot on the pedal and it was rock solid.
Other thing noticed dunno if its related is the drivers side rotor
(which is new) seems to vibrate when you go down
a fairly steep hill and ride the brake down to stay in the speed limit posted.
I was told that in 4wd that wheel becomes the front drive wheel, not
sure is thats important or not regarding this,
but also both front wheel bearings were replaced last yr, and that one
seems to have a hard time keeping the center cap
on for a long while. I check to see if any of the hubcaps can be pushed
in after long miles of driving and that
one is usually a little loose and would come off eventually, already
lost (2) of them, so I was wondering if that
means the wheel bearing on that side is a little questionable?
Update
Last night the ABS and Brake light came on.
Checked the fluid
and was very low, topped it off , lights are gone
but I can see the brake line from the master to that side
caliper is leaking
fluid and its dripped onto the frame.
Hopefully just a brake line....might have all the front ones
done-a to get it over with.
Last night the ABS and Brake light came on.
Checked the fluid
and was very low, topped it off , lights are gone
but I can see the brake line from the master to that side
caliper is leaking
fluid and its dripped onto the frame.
Hopefully just a brake line....might have all the front ones
done-a to get it over with.
The advice from Paul in Houston was correct.
Any vehicle sitting 12 years has absorbed moisture into the
brake fluid; new lines rebuild or replace cylinders is the
right path.
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