1989 XJ with no brakes
#1
Newbie
Thread Starter
Join Date: Jul 2023
Posts: 7
Received 0 Likes
on
0 Posts
Year: 1989
Model: Cherokee (XJ)
Engine: 2.1 TD
1989 XJ with no brakes
Greetings.
For the past couple of months i have been trying to get to the root cause of the brakes not working on my '89 XJ, 2.1 TD model.
Among the many things i have done in an effort to fix it, i had changed the Master Cylinder (to no effect) and the Vacuum Pump (which seemed to have done the trick and also solved the problem with the AC actuators, until i tried to bleed the brakes and that was when the problem came back).
I dont think it is the brake booster since despite the hissing sound whenever i press the brake pedal, the pedal remains super soft.
Another thing i have noticed is that in the master cylinder, there is bubbling coming from the hole in the rear compartment (closest to the firewall) though i have no idea where the air would be coming in from.
I have read stuff about bleeding the Master cylinder, but i have no idea how to do that.
Anyone have any ideas?
For the past couple of months i have been trying to get to the root cause of the brakes not working on my '89 XJ, 2.1 TD model.
Among the many things i have done in an effort to fix it, i had changed the Master Cylinder (to no effect) and the Vacuum Pump (which seemed to have done the trick and also solved the problem with the AC actuators, until i tried to bleed the brakes and that was when the problem came back).
I dont think it is the brake booster since despite the hissing sound whenever i press the brake pedal, the pedal remains super soft.
Another thing i have noticed is that in the master cylinder, there is bubbling coming from the hole in the rear compartment (closest to the firewall) though i have no idea where the air would be coming in from.
I have read stuff about bleeding the Master cylinder, but i have no idea how to do that.
Anyone have any ideas?
#2
Member
Did you bench bleed the master before the install, and verify the push rod was the correct length. You should also clean and bleed the proportioning valve.
#3
Newbie
Thread Starter
Join Date: Jul 2023
Posts: 7
Received 0 Likes
on
0 Posts
Year: 1989
Model: Cherokee (XJ)
Engine: 2.1 TD
Again, i don't really know how to do that unless it consists in opening the cover and just pumping the brakes. In that case i tried, but either there is a MASSIVE amount of air in the system somewhere, or it's being sucked in because there is consistent bubbling from the hole in the rear reservoir inside it when i pump the brakes.
#4
Member
Thread
Thread Starter
Forum
Replies
Last Post
slammer
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
9
09-27-2022 03:42 PM
Rickeycole
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
3
11-16-2021 04:05 PM
96rokee
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
23
04-03-2012 04:38 PM
rangerfan93
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
23
03-06-2012 03:05 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)