NAXJA Forums -::- North American XJ Association  

Go Back   NAXJA Forums -::- North American XJ Association > NAXJA Unibody Jeep Technical Forums > Jeep Cherokee XJ (1984 - 2001) > OEM Tech Discussion
HOME Member FAQ Sponsor Info Rules Bylaws E-Mail

OEM Tech Discussion Forum for OEM (Original Equipment) or stock XJs and MJs.

Thread Tools Display Modes
Old November 3rd, 2019, 14:02
tballer4596's Avatar
tballer4596 tballer4596 is offline
NAXJA Forum User
Join Date: Oct 2019
Location: NY
Posts: 8
Poor Braking Mystery

Hey all,

This issue has been plaguing my jeep. Every time I hit the trail go through a few puddles, my brakes are GONE. And I mean really bad.

Now I know what you are thinking, they get wet, mud, whatever, and the brakes cant stop as easily. I agree.

However, the issue persists for days after and the brakes usually do not fully return to normal. Meaning, every time I hit the trail, my brakes get significantly worse.

Heres the current situation:

I have brand new brake lines front and back, new calipers, new drums, shoes, pads, everything.

I got stuck in a bad mud hole a few weeks ago and afterward the brakes were pretty much gone, when before I got stuck they were perfect.

I decided that the master cylinder must be bad so I replaced it, replaced the rear shoes which were about 6 months old, re-bled all the lines, and after that it stopped great. I had zero complaints. My pedal was high and hard, and I could easily lock up the tires with enough force.

The other day, I hit a few muddy puddles with a friend, immediately felt the wet brakes which barely stopped, but I figured they would dry up and it would go away.

Nope. After several days, my pedal was lower than before and stopping was worse than it had been before the puddles. This week, after a 25 minute ride through a trail with maybe 10 6" puddles, the brakes are even worse yet. I can stomp as hard as I want but the tires wont lock whatsoever and my braking distance is concerning long, even after a day of normal driving. Im fed up! The only thing I can think of is the front brake pads which I got from advance auto, I got the most expensive ones they had. Could they be this crappy?

Any help would be appreciated.
Reply With Quote
Old November 3rd, 2019, 15:57
Heavyopp Heavyopp is offline
NAXJA Member
Join Date: Jan 2017
Location: Middlesex, NJ
Posts: 861
Re: Poor Braking Mystery

Advance auto brake pads — yes they can be that crappy — I have never had any luck with pads from advance auto

All makers have their low end stuff but generally the mid to higher end raybestos stuff works well for the type of driving I do — I’ll almost always buy brakes from rock auto

Are your rear drums adjusted properly?

Last edited by Heavyopp; November 3rd, 2019 at 16:09.
Reply With Quote
Old November 3rd, 2019, 21:38
lazyxj's Avatar
lazyxj lazyxj is offline
NAXJA Member #1310
Join Date: Mar 2004
Location: Los Angeles
Posts: 2,617
Re: Poor Braking Mystery

Mud and brakes don't get along well, it gets into the caliper slides and jams them.
Same goes for the rear shoes, the grease, where the shoes slide, attracts crud.
If you drive in such conditions regularly, frequent maintenance is necessary for the best performance.
Mud is evil.
Both XJs are still Real XJs
01 Sport, Russ Pottenger 4.6, AW4, 4" lift, 33 X 10.50 KM2, 4.56-8.25 TruTrac, D-30-E-Locker with alloy shafts, Hidden M8000 winch, Vanco front and ZJ rear disc brakes, Frame stiffeners, Lots of armor, Towing baseplate.
1997 Country, Mostly stock, 2" lift, Engine mods, NP242, Towing baseplate
Reply With Quote
Old November 4th, 2019, 11:55
Flyfisher's Avatar
Flyfisher Flyfisher is offline
NAXJA Forum User
Join Date: Sep 2003
Location: Billings, Montana
Posts: 835
Re: Poor Braking Mystery

When you have the "wet brakes" feeling, how is the pedal? Is it still hard, but just no breaking? Is it it goes to the floor? Does pumping the brake pedal help?
Reply With Quote
Old November 5th, 2019, 16:34
tech1001 tech1001 is offline
NAXJA Forum User
Join Date: Oct 2016
Location: Los Angeles
Posts: 170
Re: Poor Braking Mystery

You mite try sloted rotors the slots help clear the mud and drit from the pads and will give the water some place to go and your stoping will be better .
Reply With Quote
Old November 6th, 2019, 06:49
Scrubber3 Scrubber3 is offline
NAXJA Forum User
Join Date: Feb 2019
Location: North Carolina
Posts: 76
Poor Braking Mystery

Sounds like your slide bolts on the calipers are getting water and grime stuck in them. Are the rubber slide bolt covers still on? If not, that's your problem. Also, be sure they are fastened properly and that the slide bolts are lubed with brake caliper grease.

Check for contamination of the brake fluid and that it is of manufacturer specs. I had a guy use transmission fluid as brake fluid once. Had to replace everything rubber in his brake system. All the hoses, master cylinder, etc... his car wouldn't stop very well to say the least.

Be sure the wheel cylinders are in good order and the rear brakes haven't came apart.
Reply With Quote
Old December 13th, 2019, 22:42
Scrubber3 Scrubber3 is offline
NAXJA Forum User
Join Date: Feb 2019
Location: North Carolina
Posts: 76
Poor Braking Mystery

Has the mystery been solved?
Reply With Quote

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

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
WJ/KJ brakes in my XJ, poor rear braking. blistovmhz Modified Tech Discussion 65 December 24th, 2015 17:17
Poor braking performance jeeptec Modified Tech Discussion 13 July 17th, 2015 21:48
need better braking! XJ longhouse Modified Tech Discussion 9 December 12th, 2011 11:48
Intermittant Poor Running + Poor MPG Drewlee77 OEM Tech Discussion 19 August 11th, 2007 10:46
Better Braking BobCSmith Modified Tech Discussion 12 March 26th, 2004 13:19

All times are GMT -7. The time now is 16:47.

Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
NAXJA and NAXJA logo's Copyright NAXJA. All content/images Copyright NAXJA 1999-2014