Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here XJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.

Abs pump

Thread Tools
 
Search this Thread
 
Old 10-17-2012, 11:06 PM
  #1  
Junior Member
Thread Starter
 
Fergy's Avatar
 
Join Date: Jun 2012
Location: Oregon
Posts: 58
Likes: 0
Received 0 Likes on 0 Posts
Year: 1991
Model: Cherokee
Default Abs pump

This is driving me insane. I'm going to explain this in detail in hope to actually get some help

1991 cherokee

ever since I've owned my jeep, every time i would start it up, the "check anti-lock light would come on and a noise (almost like a turkey call) coming from behind my glove box area (back left of engine). After a few seconds the noise and light would shut off. Every time i would brake while drive the same thing would happen but then it would just turn off after a little so i didn't mind it much. Then one day on my way home the chirping noise wouldn't stop and was really loud. so i got out and pulled the "abs pump" fuse and the noise stopped however my brakes became stiff and i pretty much do not have brakes.

Is there a way i can stop the nose? pull the system? run standard brakes?

I read that there was a recall but i took it in and it didn't fix anything. Cheapest and easiest thing would be best. New brake systems are expensive. someone at work told me to pull the pump and just plug the lines?

Any ideas are helpful
I will post a video tomorrow if no one knows what i am really talking about
thanks
Old 10-17-2012, 11:13 PM
  #2  
CF Veteran
 
Radi's Avatar
 
Join Date: Apr 2012
Location: Wisconsin
Posts: 5,302
Likes: 0
Received 20 Likes on 17 Posts
Model: Cherokee
Default

If you have the wonderful (cough) Bendix 9 system, and I suspect you do- the ABS pump also supplies brake boost. When the pump fails you revert to manual brakes, only worse since you have to stomp that fluid through a bunch of non-functioning parts.
The pump is on the firewall sorta behind the glovebox..that's where your turkey call is coming from.
Careful working on that system- the accumulators, there are two of them, can hold a couple thousand PSI. Since your pump is failed the accumulators are probably holding little pressure, but pumping the brake pedal 20-30 times should bleed any remaining pressure off. Just in case.
The parts are still out there to fix it, but it's $$ bend-over territory. Way over. The other fix is to swap in a master cylinder and booster from a non-ABS XJ from the same era and rip it all out. There's a couple write-ups floating around on how to do that.

Last edited by Radi; 10-17-2012 at 11:17 PM.
Old 10-17-2012, 11:51 PM
  #3  
Junior Member
Thread Starter
 
Fergy's Avatar
 
Join Date: Jun 2012
Location: Oregon
Posts: 58
Likes: 0
Received 0 Likes on 0 Posts
Year: 1991
Model: Cherokee
Default

that sucks… what would you personally do? would it be worth pulling on from a yard?
Old 10-18-2012, 01:50 AM
  #4  
CF Veteran
 
Radi's Avatar
 
Join Date: Apr 2012
Location: Wisconsin
Posts: 5,302
Likes: 0
Received 20 Likes on 17 Posts
Model: Cherokee
Default

Originally Posted by Fergy
that sucks… what would you personally do? would it be worth pulling on from a yard?
You could try to find a pump/motor assembly from a yard if you want to retain the ABS. That system has a 100K mile no time limit warranty IIRC, if you are under that mileage I'd pester the dealership.

Personally ABS makes me cranky, lol. I don't like nanny-systems like ABS second guessing my braking..thus I'd personally remove it and install the non-ABS MC and booster. The additional reliability over that Bendix setup is a plus too. What you do, repair or remove is of course your decision.

Pics on removal and swap:
http://www.4wdandsportutility.com/te...mited_buildup/
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
libengan
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
14
11-06-2015 09:16 AM
Endlessknight
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
4
09-26-2015 03:20 PM
Joshuapn
Other Vehicles. Other Jeep models & cars and trucks of other makes
1
09-25-2015 08:16 PM
Pez
Modified XJ Cherokee Tech
3
09-02-2015 11:29 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


Quick Reply: Abs pump



All times are GMT -5. The time now is 07:12 PM.