rear brake problems - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 02-01-2010, 07:20 PM   #1
Newb
 
Join Date: Feb 2010
Posts: 1
Unhappy rear brake problems

I have 98 wrangler sport TJ..
when i step on the brakes in 2 wheels drive the front brakes lock up..the rear brakes have just a light drag on them but will not stop..BUT when i am in 4 wheel high I step on the brakes and all 4 lock up..the front brakes are new with new rotors..the rear brakes are good.i cleaned the brakes and brake cylinders.they seem to be working too..the brake flluid is full..
any idea's
buckjr1800

chas

buckjr1800 is offline   Quote Quick Reply
Old 02-01-2010, 07:35 PM   #2
Jeeper
 
InfernoGirl's Avatar
 
Join Date: May 2009
Location: Newburgh IN
Posts: 11,419
I think it's just the nature of the beast. No ABS on my TJ, so I have to relearn how to brake appropriately. Pump them, don't stomp them. Neutral if all else fails...

__________________

Dirty Mudder column covers|

'01 Wrangler Sport, Sienna Pearl Mine
'07 Rubicon 2D, Flame Red His
'11 Wrangler Sport 4D, Black Ours...

Quote:
Originally Posted by Kate View Post
Not every girl, is a Jeep girl. We're a special breed.
InfernoGirl is offline   Quote Quick Reply
Old 02-01-2010, 07:39 PM   #3
Jeeper
 
daanbc's Avatar
 
Join Date: Mar 2009
Location: Palm Beach Fl.
Posts: 798
Images: 2
I may be wrong, but when you are in 4-wheel drive=all wheels have equal power.(connected) Therfore if you brake hard all four will lock up -the rear are connected to the front. In two wheel drive they act independently
daanbc is offline   Quote Quick Reply
Old 02-02-2010, 02:13 AM   #4
Jeeper
 
Join Date: Jan 2010
Location: Greater Seattle Area
Posts: 109
Braking is a completely separate system than 2 or 4-wheel drive. What I suspect you are seeing is when in 2-wheel drive, the power of your drivetrain is helping keep your rear wheels spinning, and when you are in 4-wheel drive, power is being equally applied, thus taking a little more power to evenly stop all wheels at the same time. There's more to it as well, such as a proportioning valve that helps adjust the ratio of braking power to the front and rear axles, as well as some systems apply braking to opposite corners in two separate systems (left front and right rear are one system, and right front and left rear are another) to help prevent loss of stopping power should one system fail. I'm afraid I don't know the specifics of the system in the Jeep to tell you what's there.

Did you bleed the brakes yourself? Do you know how to do this? (Does your Jeep have ABS?)
Unless someone here has better advice, one thing you can do is either bring your Jeep to a shop and have them bleed your brakes, or have them test what the pressure is at each caliper.

There's a link on the ever popular Stu-Offroad page with more information.
__________________
97 TJ 6cyl, 5speed 37" Krawlers on American Racing 17" wheels. (Beadlocks someday)
RE 5.5 Long arm, Currie 9" front and rear with ARB's, Warn hubs and axle shafts, CTM u-joints
Optima Dual Batteries, OR Fab roll cage, custom rock sliders, SMF shorty bumpers front and rear.
My Jeep Site: www.jeffsjeep.com
JeffsJeep is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may 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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
rear brake problems jdehn YJ Tech Forum 6 12-16-2009 10:19 PM
Rear D44 Disk Brake Conversion with D44A Disks ? nicolas-eric TJ Tech Forum 5 11-21-2009 01:13 AM
rear brake lights MoA TJ General Discussion Forum 0 07-30-2007 06:17 PM
leak on rear axle by vent hose BlackJeepoftheFamily TJ Tech Forum 6 08-27-2006 10:17 AM



» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 03:14 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC