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Cracked Rotor?!

Old Jul 23, 2014 | 08:49 AM
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Cracked Rotor?!

Noticed this last night when I got home. Is it common for Rotors to crack like this?! Its part of the RTR package, which the dealer said was installed there by Ford in San Antonio a couple years ago and would still be under warranty. Would something like this be covered? I know this isn't something I did
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Old Jul 23, 2014 | 08:51 AM
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Originally Posted by 05PRMTX
Noticed this last night when I got home. Is it common for Rotors to crack like this?! Its part of the RTR package, which the dealer said was installed there by Ford in San Antonio a couple years ago and would still be under warranty. Would something like this be covered? I know this isn't something I did
wow something crazy must have been going on for a rotor to crack... i mean i would think so atleast cause i've never heard of one cracking before.
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Old Jul 23, 2014 | 08:54 AM
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http://imgur.com/qyoxVsP

Not the best pic, I'll try and get a better one later

Last edited by 05PRMTX; Jul 23, 2014 at 08:58 AM.
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Old Jul 23, 2014 | 08:57 AM
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Originally Posted by rmurer
wow something crazy must have been going on for a rotor to crack... i mean i would think so atleast cause i've never heard of one cracking before.
Right?! It appears to be fairly shallow and goes through one of the cross driled holes, but how does that even happen? I'm not a crazy driver. I've just been going too and from work lately

Last edited by 05PRMTX; Jul 23, 2014 at 08:59 AM.
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Old Jul 23, 2014 | 11:36 AM
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Originally Posted by 05PRMTX
Noticed this last night when I got home. Is it common for Rotors to crack like this?! Its part of the RTR package, which the dealer said was installed there by Ford in San Antonio a couple years ago and would still be under warranty. Would something like this be covered? I know this isn't something I did
I recommend you speak to your service manager about this, 05PRMTX. He is in the best position to ensure a proper diagnosis, and will be able to provide available options and/or coverage for any work needed.

You can schedule an appointment online here.

Deysha
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Old Jul 23, 2014 | 11:45 AM
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Not entirely uncommon on drilled rotors...
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Old Jul 23, 2014 | 12:01 PM
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Originally Posted by Joeywhat
Not entirely uncommon on drilled rotors...
Just about to say this. I always went slotted for this reason.
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Old Jul 23, 2014 | 12:10 PM
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It is through one of the drilled holes so I guess that makes sense. I've just never seen a crack on a rotor before. It isn't very big, but is this something I need to address immediately?

Last edited by 05PRMTX; Jul 23, 2014 at 12:11 PM.
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Old Jul 23, 2014 | 12:23 PM
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Yes, it should be replaced ASAP. Your rotor is compromised structurally, and it could come apart at speed which would not be enjoyable for you or anyone around you.

Get it fixed.
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Old Jul 23, 2014 | 12:30 PM
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Originally Posted by Joeywhat
Not entirely uncommon on drilled rotors...
Originally Posted by typesredline
Just about to say this. I always went slotted for this reason.
Usually from heat from track usage right?
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Old Jul 23, 2014 | 12:34 PM
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Originally Posted by cdynaco
Usually from heat from track usage right?
I've seen cheap ones crack from just street usage.
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Old Jul 23, 2014 | 12:46 PM
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Originally Posted by Joeywhat
I've seen cheap ones crack from just street usage.
This one is supposed to be from Ford.....
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Old Jul 23, 2014 | 12:48 PM
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Originally Posted by Joeywhat
Yes, it should be replaced ASAP. Your rotor is compromised structurally, and it could come apart at speed which would not be enjoyable for you or anyone around you.

Get it fixed.
Right, I kinda figured. I scheduled an appointment for tomorrow morning

Last edited by 05PRMTX; Jul 23, 2014 at 12:51 PM.
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Old Jul 23, 2014 | 12:56 PM
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Originally Posted by Joeywhat

I've seen cheap ones crack from just street usage.
Ditto. I recommend quality slotted rotors for this very reason. Cheap drilled rotors can crack under street use and will eventually crack under hard track braking.
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Old Jul 23, 2014 | 01:02 PM
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Originally Posted by 05PRMTX
This one is supposed to be from Ford.....
I highly doubt they are Ford OEM parts. Dealer installed does not equal manufacturer installed.
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Old Jul 23, 2014 | 01:14 PM
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Originally Posted by Joeywhat
I highly doubt they are Ford OEM parts. Dealer installed does not equal manufacturer installed.
It appears these are what came with the package.

http://www.carid.com/2011-ford-musta..._CgaAqvQ8P8HAQ
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Old Jul 23, 2014 | 11:23 PM
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Heat will cause that. They can cool down pretty quickly after a light pressure but long duration apply, they can crack if they're not manufactured just right.


What I see a lot of are people using their breaks in situations they don't need to when simply letting the foot off the gas will let the car do the same job by itself. Not saying you do that but ****, people around here eat breaks like there's no tomorrow. Rolling stops and just generally hitting the breaks in the middle of their cruise for no apparent reason ( there's no1 around and they aren't about to turn or stop, they just hit the breaks in the middle of the road ). I see this every single day.

Last edited by jc46002003; Jul 23, 2014 at 11:37 PM.
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Old Jul 24, 2014 | 07:17 AM
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Originally Posted by jc46002003
Heat will cause that. They can cool down pretty quickly after a light pressure but long duration apply, they can crack if they're not manufactured just right.


What I see a lot of are people using their breaks in situations they don't need to when simply letting the foot off the gas will let the car do the same job by itself. Not saying you do that but ****, people around here eat breaks like there's no tomorrow. Rolling stops and just generally hitting the breaks in the middle of their cruise for no apparent reason ( there's no1 around and they aren't about to turn or stop, they just hit the breaks in the middle of the road ). I see this every single day.
I hear you there. People love their brakes here in Houston. Like you said, they just hit them for no reason whatsoever. A lot of times forcing me to use mine when I otherwise wouldn't. Half the people here should not have a drivers licence.....
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Old Jul 24, 2014 | 09:14 AM
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Originally Posted by 05PRMTX
I hear you there. People love their brakes here in Houston. Like you said, they just hit them for no reason whatsoever. A lot of times forcing me to use mine when I otherwise wouldn't. Half the people here should not have a drivers licence.....
Think that's everywhere lol.
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