Question about 1994 Jeep Grand Cherokee

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94 jeep grand cherokee laredo brake problem

Ok so i put new rotors, calipers, pads, drums, shoes, and a master cylinder on my jeep then bled the brakes very well, the pedel will build up pressure then loose it this puzzles me. i did not have this problem before the work. please help me.

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  • pheonix86 Dec 16, 2008

    I have a 94 grand cherokee limited with the v8. I changed front brake calipers and my mechanic changed the master cylinder. car ran fine for thirty miles then rear brakes start to lock up and gradually get worse

  • ckimball03 Apr 24, 2009

    i put new rotor calipers pads and shoes, bled all air out of system.

    let sit for a minute or so,first strike on pedal goes to the floor second strike on pedal is a full brake pedal, i thought it was the abs unit so i cut it out of the system and spiced to hard lines still the same problem,put new master cylinder bench bled it,still the same,check rear brake adjustment,was good,i have done a lot of brake work and never had a problem. somebodys got to know how to solve this problem. please help if you had a 1994 cherokee with brake porblems

    you can email me @ckimball03@hotmail.com

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Same thing happened to me, we went through 3 master cylinders till we figured it out. Each time, same problems. Apparently in the 94 jeep grand Cherokee with the v8 drum rear had used 93 jeep grand Cherokee parts. The rod that operates the master cylinder on the 93 and 94 cherokees are a half in. shorter than the 95. The are using parts from the 95 in the 94 aftermarket master cylinders. We used a reman master cylinder from a 93 jeep part number=10-2640, made by pronto and reman by cardone. Took 4 months of research, much frustration, but that part solved it, and works great.

Posted on Mar 19, 2012

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  • Master
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Hi there!

Check for leaks at the slave cylinders and flexi hoses.

After several attempts of losing pressure - check the brake fluid level in the master.

If you arn't losing any fluid, You've got a damaged seal in the Master cylinder, or are drawing air in due to improper adjustment (excess travel) of slave cylinders.

Are you trying this with engine running? - How does this affect it (using servo assist)

Posted on Jun 15, 2008

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  • Jeep Master
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If its all correct parts and adjusted right? pre fsm right?
use a pressure bleeder. system.
and win
you have air in the system.
bleeding is an art and skil
i use 3 ways to bleed, to get it right.
pressure, vacuum and last 2 man way to be sure its correct and ZERO bubbles, be ready with 1 qt of DOT/3/4 ,
you will have lots of air in the system, and loves to hide
think like this.
you bleed top to bottom right?
and air floats up hill
see that conundrum?
that means it not easy or for the quick fix guys.
be ready to do all ways to bleed.
there are 5.

  1. pressure top (at MC)
  2. pressure bottom (reverse flow)
  3. gravity
  4. vacuum
  5. 2 man.

be ready, and win,...


rtm , read the manual yet on correct assembly>?
zj

http://www.morris4x4center.com/knowledge-base/index.htm?utm_source=cj#service

it free, read it ,see if you messed up first.
then act.

Posted on Mar 14, 2016

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I have a 94 Jeep Cherokee Laredo and I can't figure out what's wrong with my back break light will not go off at all even when I turn the car off it still stays on

Posted on Mar 12, 2016

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I had this just happen with my 94 grand cherokee

it may sound dumb but i did all the same things to fix mine and it turned out being that my brake adjuster in the rear pas side fell out. it gives those wierd results and frustrates the heck out of you

Posted on Apr 10, 2009

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