2018 JKU Possible Rear Rotor Issue? - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > JK Jeep Wrangler Forum > JK Tech Forum

Join Wrangler Forum Today


Like Tree1Likes
  • 1 Post By Blastek
Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 07-13-2019, 10:01 AM
Thread Starter
  #1
Jeeper
 
Join Date: Aug 2014
Posts: 456
2018 JKU Possible Rear Rotor Issue?

Not sure if this is a issue or not. Over the last few weeks it seems as though when I stop sometimes that the ABS is trying to kick in. Getting almost like a pausing in the paddle. After doing some investigating I found the driver rear rotor is quite hotter after driving even short distance. After looking at all the rotors I found the driver rear to almost look as thought it is getting score marks. Suggestions as to if this looks as though it is? Max only has 8000 miles on him...UGH.....not wanting to call the dealer just yet an have them charge me to say nothing is wrong...LMAO. Any thoughts would be appreciated. TY

Attached Thumbnails
Click image for larger version

Name:	Rotor.jpg
Views:	15
Size:	200.8 KB
ID:	4163637  
JeepLover41 is offline   Quote
Old 07-15-2019, 06:46 AM   #2
Jeeper
 
jac04's Avatar
 
Join Date: Aug 2014
Location: Connecticut
Posts: 1,557
You say that this is something new, so obviously something has changed. It is hard to tell from just one picture, but the caliper could be causing the pads to drag on that side especially if it looks different compared to the other side and it is getting a lot hotter than the other side. The score marks don't look unusual to me for brakes with some miles on them, but if that side is noticeably different than the other side then it can be signs of a problem. Again, hard to tell from one picture.

If you are not comfortable working on the brakes yourself, then bring it in.

If you are mechanically competent, then check the caliper pistons & slide pins to make sure they are not sticking, and also check to make sure the parking brake shoes are adjusted properly.

What's your location? I'm in northern central CT. If you're local, I'll have a look at it with you.

__________________
2014 JK Rubicon X, 4.10 Auto \\ Dynatrac HD 1/2" tubed ProRock 44 w/ ProSteers \\ Yeti Tie Rod & Drag Link \\ TeraFlex front LCA Sport Flexarms \\ Custom-built Dana 44 HD rear axle, fully welded w/ Artec brackets & Ten Factory shafts \\ AEV 2” Lift \\ 255/80-17 BFG KM2 tires \\ Skid plates = LCAs, engine, trans, gas tank, evap, AEV diff slider \\ Custom rear shock, exhaust loop & x-member Skids \\ Warn Zeon 10s w/FlatLink \\ AEV Rear Bumper \\ aFe 2.5 High Tuck axle-back
jac04 is offline   Quote
Old 07-15-2019, 08:20 AM   #3
Moderator

WF Lifetime Member
WF Supporting Member
::WF Moderator::
 
jadmt's Avatar
 
Join Date: Sep 2012
Location: missoula
Posts: 21,891
jack the back up and spin the rear wheels and see how much drag there is. also possible a bent flange which will be obvious when spin the wheel as it maybe visible to the eye but will drag at the same point on every rotation.
__________________
2018 Gobi Recon unlimited W/Mopar 2" lift coils combined with RK rear coils wedges, TF lower control arms, rear TF monster track bar and rear track bar bracket and Falcon 3.1 shocks, Cooper ST Maxx 315/75-17 on AEV Salta rims, Grabars, RE gas skid tank, mopar head liner, Warn VR10 and Maximus3 winch plate.
https://www.wranglerforum.com/f314/y...i-2192385.html
jadmt is offline   Quote
Sponsored Links
Advertisement
 
Old 07-15-2019, 08:21 AM   #4
Moderator

WF Lifetime Member
WF Supporting Member
::WF Moderator::
 
jadmt's Avatar
 
Join Date: Sep 2012
Location: missoula
Posts: 21,891
also check to make sure your caliper bolts are torqued properly. ABS should not be trying to kick in on normal slow stops.
__________________
2018 Gobi Recon unlimited W/Mopar 2" lift coils combined with RK rear coils wedges, TF lower control arms, rear TF monster track bar and rear track bar bracket and Falcon 3.1 shocks, Cooper ST Maxx 315/75-17 on AEV Salta rims, Grabars, RE gas skid tank, mopar head liner, Warn VR10 and Maximus3 winch plate.
https://www.wranglerforum.com/f314/y...i-2192385.html
jadmt is offline   Quote
Old 07-16-2019, 05:05 AM
Thread Starter
  #5
Jeeper
 
Join Date: Aug 2014
Posts: 456
Quote:
Originally Posted by jac04 View Post
You say that this is something new, so obviously something has changed. It is hard to tell from just one picture, but the caliper could be causing the pads to drag on that side especially if it looks different compared to the other side and it is getting a lot hotter than the other side. The score marks don't look unusual to me for brakes with some miles on them, but if that side is noticeably different than the other side then it can be signs of a problem. Again, hard to tell from one picture.

If you are not comfortable working on the brakes yourself, then bring it in.

If you are mechanically competent, then check the caliper pistons & slide pins to make sure they are not sticking, and also check to make sure the parking brake shoes are adjusted properly.

What's your location? I'm in northern central CT. If you're local, I'll have a look at it with you.
Thanks for the offer to look. I am in PA so that would be a great trip with the top off.... I have done brakes, but was also told the rears on Jeeps are a pain in the rump. Not sure as to why the shop told me that. Haven't had to mess with rear disks on a Jeep as of yet. Guess its time to get my hands dirty and suck it up....LOL.
JeepLover41 is offline   Quote
Old 07-16-2019, 05:12 AM
Thread Starter
  #6
Jeeper
 
Join Date: Aug 2014
Posts: 456
Quote:
Originally Posted by jadmt View Post
also check to make sure your caliper bolts are torqued properly. ABS should not be trying to kick in on normal slow stops.
Yeah something just is not right. Light doesn't come on....but you can truly feel the pulsing in the pedal at times. First felt it on a wet road, now it seems to be doing it more. My 2016 ate the rear rotors in less then 35000 miles....ugh. At first I thought maybe a rock or such made the lines....but they seem to be getting deeper and more coming from the hub out towards the pad assembly. Guess I will be getting my hands dirty this weekend...LOL. And no I am not a brake happy lady...... Thanks for the tips....when they did my 2016 brakes...I didn't because of work...told me they are a pain in the butt. Never worked on rear Jeep brakes, so I guess I will get some new experiences. Can't be to much different the front wheel drive disks...guess I will see....
JeepLover41 is offline   Quote
Old 07-16-2019, 09:26 AM   #7
Jeeper
 
Blastek's Avatar
 
Join Date: Mar 2012
Posts: 3,054
The rear calipers and rotors are no different than the front in terms of difficulty and replacement. They may be talking about changing the parking shoes, which are inside the rotor and are a little more difficult than regular drum brakes to change because of the shaft is in the way.

I would do what jadmt said and jack up the rear and see how it spins. Make sure you chock the front wheels first!! It could also be that your parking brake is adjusted wrong and it's rubbing on that side. Does your parking brake engage ok?
JeepLover41 likes this.
__________________
2012 Deep Cherry Red JKU Sport S - Tickastar, 6 speed, 3.73, Dual Tops
Blastek is offline   Quote
Old 07-17-2019, 07:38 AM
Thread Starter
  #8
Jeeper
 
Join Date: Aug 2014
Posts: 456
Quote:
Originally Posted by Blastek View Post
The rear calipers and rotors are no different than the front in terms of difficulty and replacement. They may be talking about changing the parking shoes, which are inside the rotor and are a little more difficult than regular drum brakes to change because of the shaft is in the way.

I would do what jadmt said and jack up the rear and see how it spins. Make sure you chock the front wheels first!! It could also be that your parking brake is adjusted wrong and it's rubbing on that side. Does your parking brake engage ok?
I have not tried the parking brake. Its a Auto so really no need to. Though I should know better...should be trying every month or so. Found that out the hard way before. Never want to find its not working when you need it...LOL. Thanks I will try it today when I get home...just in case it decides to stick...LOL. That would be my luck.

JeepLover41 is offline   Quote
Reply

Thread Tools

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off






All times are GMT -5. The time now is 06:55 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.1
User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, Gladiator, Mopar and Grand Cherokee are copyrighted and trademarked to FCA US LLC.
Wranglerforum.com is not in any way associated with FCA US LLC.