Are warped front brake disc rotors standard equipment? - 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 04-30-2010, 05:06 PM   #1
Newb
 
Join Date: Apr 2010
Posts: 14
Are warped front brake disc rotors standard equipment?

Are warped disc rotors standard on Wranglers? My new 2002 has a really bad case at 51,000 miles old. Paul

ncpapaul is offline   Quote Quick Reply
Old 04-30-2010, 05:35 PM   #2
Jeeper
 
Schmo's Avatar
 
Join Date: Jul 2007
Location: SoCal
Posts: 1,586
Quote:
Originally Posted by ncpapaul View Post
Are warped disc rotors standard on Wranglers? My new 2002 has a really bad case at 51,000 miles old. Paul
LOL...could be . . . my 06 was giving me that pulsing in the pedal feeling a while back, but it seemed to have warped back into place or something cuz I haven't felt it hardly at all for the last few months.

__________________
Bite the hand that feeds you . . . you've had more than enough to eat already.
Schmo is offline   Quote Quick Reply
Old 04-30-2010, 05:36 PM   #3
Jeeper
 
Join Date: Jan 2010
Location: Rock Hill, S.C.
Posts: 174
Yes, they come standard with all Jeeps from Chrysler. In order to keep the weight down, they went with cheap thin rotors. I have an '05, and mine didn't make it to 30k. It's a very simple swap, and while you are at it you might as well change the pads. I think I spent around $200 if my memory serves me well.
oranjeep is offline   Quote Quick Reply
Old 04-30-2010, 05:42 PM   #4
Jeeper
 
Schmo's Avatar
 
Join Date: Jul 2007
Location: SoCal
Posts: 1,586
Who needs brakes anyway . . . that's why I don't wear a seatbelt, so I can jump out if things get too hairy!
__________________
Bite the hand that feeds you . . . you've had more than enough to eat already.
Schmo is offline   Quote Quick Reply
Old 04-30-2010, 06:48 PM   #5
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 31,367
Images: 2
The all-cast rotors Jeep has been shipping since around 2000 or 2001 are actually very good quality, unlike the cheap lightweight warp-prone composite rotors like earlier Wranglers (like my '97 did) came with.

Often, a pulsating brake pedal is not the warped rotor problem we usually think it is. When it's not caused by a warped rotor, it is caused by a buildup of brake pad material on the rotors that can be removed. Think of those dry dusty dirt roads where a series of repetitive bumps in the road have built up from passing traffic... whoopty-doos we often call them. The more traffic that drives over the whoopty-doos, the worse they get. This same phenomena is what causes the brake pad material to build up on the rotors causing a pulsating pedal.

With the newer heavy-duty rotors Jeep has been shipping, it's a toss-up whether they are warped or that they simply have that buildup on the rotors. I'd probably bet on it being a rotor buildup before I'd guess the rotors are warped if you haven't been overheating your brakes on a regular basis.
__________________
When you have a choice, buy American.

Jerry Bransford is offline   Quote Quick Reply
Old 05-01-2010, 05:15 AM   #6
Jeeper
 
meyers's Avatar
 
Join Date: Apr 2009
Location: Dover, New Hampshire
Posts: 738
Never had a problem on the 02 with the rotors, they are pretty hefty from the factory, and you can actually turn them if you aren't running down to metal to metal. Can't do that on all brake rotors anymore, a lot of them will be out of spec if you turn them down.

Now my 2010 Dodge Journey, 20,400 miles it needed new pads and rotors. Of course it was warrantied but still 20k for a complete front brake job, that is just crazy.
meyers is offline   Quote Quick Reply
Old 05-01-2010, 05:33 AM   #7
Jeeper
 
Kilroy's Avatar
 
Join Date: Dec 2009
Location: Southern California
Posts: 530
whoopty-doos..... Jerry, what do we look for and how do we clean the rotors?
__________________
Patience is a waste of time...
Kilroy is offline   Quote Quick Reply
Old 05-01-2010, 09:20 AM   #8
Newb
 
Join Date: Apr 2010
Posts: 14
Warped rotors thanks

Thanks all who replied. I have my own machine shop so I can put a dial indicator on each one to see which is warped and also put it in a lathe to either turn off the pad build up or skim cut the metal back true. That is good to hear that the 2002 I have (may 2002) may have the "later", thicker Jeep improved rotors. I didn't know about the early TJ rotor problem, thanks, Paul
ncpapaul is offline   Quote Quick Reply
Old 05-01-2010, 09:51 AM   #9
Jeeper
 
Schmo's Avatar
 
Join Date: Jul 2007
Location: SoCal
Posts: 1,586
Quote:
Originally Posted by Kilroy View Post
Jerry, what do we look for and how do we clean the rotors?

x2
__________________
Bite the hand that feeds you . . . you've had more than enough to eat already.
Schmo is offline   Quote Quick Reply
Old 05-01-2010, 10:28 AM   #10
Jeeper
 
joesunlimited1's Avatar
 
Join Date: Dec 2009
Location: Hazleton,Pa
Posts: 106
X2 My o6 unlimited has 16000 miles and Iam having the pulsing when going down hills. Any way to determine and clean rotors?
joesunlimited1 is offline   Quote Quick Reply
Old 05-01-2010, 11:23 AM   #11
I Need A Cigarette

WF Supporting Member
 
Sf_Kilo's Avatar
 
Join Date: Apr 2010
Location: Bethel Park, PA
Posts: 514
Images: 4
Quote:
Originally Posted by Kilroy View Post
whoopty-doos..... Jerry, what do we look for and how do we clean the rotors?
With ........Wait for it !!!.......Brake Cleaner.......!!!
LOL couldn't resist

..Anyway I have always used brake cleaner and a hunk of steel wool (non soap added; no S.O.S pads)

If you look at the rotor you will see a slightly discolored area (usually on the back side) that feels different than the rest of the disk....
I had this issue on my WRX after tracking it for a day it would occasionally need a wire wheel on a angle grinder and lots of brake cleaner, I was using EBC race compound pads and DBA rotors and it still glazed on occasionally .....

you guys must be really heating the brakes up to get a glaze deposit on the rotors.....
I would vote a warped rotor in most cases..... I guess if the jeep has 35"s it might have issues but the brakes aren't that undersized in a stock config....

I am amazed how long the brakes are lasting for you guys I ended up replacing brakes and rotors every 8-10k on my other cars.... (WRX, Mini Cooper S at least)
Sf_Kilo is offline   Quote Quick Reply
Old 05-01-2010, 12:04 PM   #12
Jeeper
 
meyers's Avatar
 
Join Date: Apr 2009
Location: Dover, New Hampshire
Posts: 738
You can use super fine emery cloth to polish them up. Have done that before to clean off the glaze

meyers 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
Jeep front end project ygohome Builders Corner 85 03-14-2010 05:49 PM
disc brake question CDC TJ Tech Forum 3 03-10-2009 10:11 AM
front rotors 4.0l sahara TJ General Discussion Forum 6 07-02-2007 01:41 PM
left front brake locking up? upinar TJ General Discussion Forum 9 12-27-2006 07:55 PM
Front Brake Problem! OneBoltShort TJ Tech Forum 5 08-25-2006 06:47 AM



» Network Links
»Jeep Parts
» Featured Product

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



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