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Unread 10-19-2010, 07:51 AM   #1
KCLiberty05
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Join Date: Oct 2010
Location: Kansas city
Posts: 1
Braking problem

I have a 05 liberty 4x4, I just replaced the front brakes and rotors it helped for about a week but the wheel and pedals still pulse/shake when braking, its getting worse and worse. The mechanic said it wasnt my drums in back, I had an alignment done a couple of months ago too, any ideas on what out may be?

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Unread 10-19-2010, 07:58 AM   #2
tjkj2002
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2002 KJ Liberty 
 
Join Date: Dec 2009
Location: Colorado
Posts: 8,114
Last time the tires have been balanced? Check the front suspension parts like the tie rod ends. Then check the runout of the rotors with a dail indicator,anymore then 0.002" of runout and your rotors are "warped".

Did you bed the pads correctly or just stop normally after replacing the brakes? Not bedding in the pads correctly will "warp" new rotors fast.Did you clean and adjust the rear drums aty the same time? If not that puts more stress on the front rotors letting them "warp" faster.You should always clean and adjust the raer drums once a year for best braking.

Easy way to test for front or rear....................

When stopping if the shaking is mainly in the steering wheel it's the front.If it's only felt in your butt(through the seat) it's the rears.While driving about 30-40mph pull the parking brake handle(do not touch the brake pedal) and see if you get a shake,easy way to test the rear drums for being out of round.
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'02 Liberty sitting on 35" tires,HP44,RockJock60,and AtlasII t-case
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Unread 10-19-2010, 08:25 AM   #3
FlyingLow
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2007 KJ Liberty 
 
Join Date: Feb 2010
Location: Jersey
Posts: 196
If its the front BUT your latral runout measues within spec off the vehicle, try measuring it on the vehicle. Could be the hubs not sitting on the bearing correctly or the bearings aren't set right. Had a similar issue. Pulled my rotors off twice and re machined them. The problem still persisted. Tried machining them while still on the vehicle just as a poke and hope. Viola! Problem solved.
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07 KJ- 6 speed, 4 inch BDS/ Daystar lift, 35x12.5 m/t's, homebrew snorkel, muffler delete w/ straight pipe, way too many lights, and a loud system to drown out the JEEP noises.
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