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Old 06-07-2007, 12:47 PM   #1
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Brake Help needed

I did the front brakes on our 2000 Wrangler. I had the rotors turned and bought the best pads Oreilys had, which were Wagner Thermo Quiet Ceramic pads. $50. I installed the freshly resurfaced rotors, and then installed the new pads( coated the back of the pad with the blue anti squeek stuff and used Brake lube on the caliper bolts). Everything worked great , no brake noise, stopped great etc. Well Wife has been driving it last couple of days. I drove it...terrible brake noise when coming to a complete stop. Drives me crazy like fingernails on a chalkboard.

I looked at the brakes and the Rotors look glazed over. Have no idea why. Any help would be greatly appreciated.

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Old 06-07-2007, 12:50 PM   #2
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Whats it sound like? Much easier to help ya if we know the sound.

Is it a squeak/wail, or does it sound like the caliper is being ripped to peices? I tore my brakes down and cleaned the mud out of em and what not, and for the next 200-300 miles my front right wheel made a sound only when slowing down at low speed that sounded like the wheel was ripping the whole caliper assembly around the wheel. HORRID sound. I tore it back down, greased everything and cleaned it up, still made the sound. Its gone now, just randomly stoped. Maybe our brakes dont like be tore apart

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Old 06-07-2007, 12:53 PM   #3
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Just typical brake squeal. Like when someone needs new pads LOL
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Old 06-07-2007, 03:28 PM   #4
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Take them apart and look, it should be obvious. It could be as simple as a rock stuck between the brake shield and rotor. It could be the caliper getting hung up on the sliders. A squeal that loud will be scraping something.

Patrick
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Old 06-07-2007, 04:30 PM   #5
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ya I would tear it back down and take a look
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Old 06-07-2007, 05:26 PM   #6
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Just came in from tearing it back apart. I went by a mechanic that I know. Told him what my problem was. His reply was "this must be your first Chrysler product". He said "did you happen to see some shims in the box?" Long story short...basically they are wear shims. Where th caliper mounts against they bracket...they wear over time. The Wagner pads I bought came with these little shims that ranged from .010 to .025". I ended up using the .015" shims and put it back together. Not squeaking now, we'll see what happens. Here is a pic of the clips...with a quarter in the picture for size reference. Also adding a pic of the instructions. Not sure how good that will come out.


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Old 06-07-2007, 05:36 PM   #7
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Bizarre. I have worked on my Jeeps 8 years now, used ~6 different brands of caliper pads, and have never seen adjustment clips for the pads.

I wonder if they help slow down the divots on the sliders. The strange part is the divots are larger on the upper slider, not the lower.
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Old 06-07-2007, 07:32 PM   #8
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Guess this was my issue too then since I never messed with no darn clips.... All I did was remove the caliper from its bracket and reinstalled.. Musta been whey I heard so much damn grinding. Anywhere I can get ahold of these clips? I guess I am going to need to shim all 4.
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Old 06-07-2007, 09:46 PM   #9
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hm, have done many TJ brakes never seen those before.. well if it helps great! keep us posted!
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Old 06-08-2007, 12:59 AM   #10
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Angry

just did my brakes and rotors today everthing new I also didn't have any clips/ shims, but what I did have was a stipped out brake caliper bolt on the passanger side so now I have to get a new caliper bracket. that was thanks to who ever replaiced the brakes the last time.
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Old 06-08-2007, 01:45 AM   #11
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I don't remember needing shims/clips on my XJ or my mothers? :comfused: Have yet to peak at the TJ's though.

But by any chance did you pads perfectly flat like these?


Or did they tapper off at the end like these?


If they are flat accross, they will skweek for the first little while no matter what. But if you take them to a belt sander and chamfer the ends they wont skweek so badly.
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Old 06-08-2007, 08:06 AM   #12
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Make sure you break them in properly too.
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Old 06-08-2007, 08:30 AM   #13
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They were flat accross.

What exactly do you recommend for Break in?
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Old 06-08-2007, 12:42 PM   #14
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be easy on them and no hard stops for first 500 miles. there are other ways, thats the easiest way
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Old 06-08-2007, 01:41 PM   #15
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Breakin involves several VERY hard stops from speeds going up to about 30 or 35 MPH. Hit the brakes hard until the Jeep stops then do it again about 9 or 10 times. mrblaine has a good process for this and could describe it much better than me.
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Old 06-08-2007, 02:13 PM   #16
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Quote:
Originally Posted by TxFireman1972 View Post
Something has been bugging me about the picture. Assuming it is a D30 knuckle, it looks like the left side knuckle. Anyone notice the direction of the tire is backwards? I think that is why the instructions say mount it on the lower part of the pad, that is the part the caliper pad hits when rotating.

I wonder if the clips are supposed to be mounted on the upper part of the pad?
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Old 06-08-2007, 03:00 PM   #17
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Its may just be a general Chrysler diagram. may not be of a jeep
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Old 06-08-2007, 03:35 PM   #18
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Originally Posted by erickpl View Post
Breakin involves several VERY hard stops from speeds going up to about 30 or 35 MPH. Hit the brakes hard until the Jeep stops then do it again about 9 or 10 times. mrblaine has a good process for this and could describe it much better than me.
Thats the complicated way thats easy to mess up. Much easier to drive 500 miles and then lock them at 50mph. But, doing the hard jolts currectly will give you better brakes(quieter, more bite) for their lifetime. just in my experience anyway.

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