Brake Bleeding Issue
#1
Thread Starter
Junior Member
Joined: Feb 2009
Posts: 79
Likes: 0
From: Brantford, ON
Year: 1996
Model: Cherokee
Engine: 4.0 L
Brake Bleeding Issue
So today I replaced my rear lines from the junction on the axle, wheel cylinders, shoes, drums, hardware, rotors, pads and calipers. I went to bleed the system and I cannot get a stiff pedal. Bled it 4 times and it is still really spongy. I am getting nothing but fluid from the bleeder screws. I don't seem to be losing any fluid anywhere also. Had a stiff pedal right before, now next to nothing.
What might be going wrong?
What might be going wrong?
#2
You've got air in the system. When you replaced everything, did the master cylinder ever run dry? If so, you've got an air bubble or two to burp out of the system. It sucks but the only way to get it out is to bleed and fill the system.
#3
Thread Starter
Junior Member
Joined: Feb 2009
Posts: 79
Likes: 0
From: Brantford, ON
Year: 1996
Model: Cherokee
Engine: 4.0 L
I have bled each brake though and am getting straight fluid from the screws, no air whatsoever. i Started at the furthest from the cylinder and worked my way up. Should I try using a self bleeder?
#4
CF Veteran
Joined: Nov 2008
Posts: 7,874
Likes: 98
From: Northern Ontario, Canada
Year: 1990, 1999, 2000
Model: Cherokee
Engine: 4.0
did you replace the front calipers?
chances are you have them on the wrong sides.
make sure the bleeder is above the flex line.
don't worry, it's a common mistake...
chances are you have them on the wrong sides.
make sure the bleeder is above the flex line.
don't worry, it's a common mistake...
#5
Member
Joined: May 2009
Posts: 247
Likes: 2
From: Northern Illinois
Year: 1997
Model: Cherokee
Engine: 4.0L
When I did some brake work and flushed/bled my lines I got a soft pedal that wouldn't go away after re-bleeding the system several times. I got the hard pedal back by bleeding the ABS module. I used PB Blaster to loosen the nuts then had a helper apply brake pedal pressure while a backed off the nuts until fluid started seaping around the threads then tightened the nuts. Might be worth a try if nothing else works.
#6
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 31
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
#7
Thread Starter
Junior Member
Joined: Feb 2009
Posts: 79
Likes: 0
From: Brantford, ON
Year: 1996
Model: Cherokee
Engine: 4.0 L
Should I have a mod delete this thread out of shame?
Thanks guys for the help, I love communities like this for vehicles, best place to get good answers!
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