Brake Caliper Seized :( - Ford Mustang Forum
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post #1 of 33 (permalink) Old 12-08-2012 Thread Starter
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Brake Caliper Seized :(

So recently I noticed when I'd brake the brakes were grinding from the back left side. I had metal on metal... The rotor was toast.

I was boggled about how a 9 month old car could have a single rear set of pads wear through so quickly.

Brought it to Ford and it turns out the left rear caliper seized. It would've been a one day job but I got a call back saying the caliper is on backorder for at least a week... Wtf?

Is this a common problem or something? How could they be on backorder?

It's possible it may have been contributed to by a fast backroad drive and forgetting to enable sport mode.

I heard CBaty had similar problems too and had to have his caliper replaced.


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post #2 of 33 (permalink) Old 12-08-2012
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I had the same issue, driver side rear caliper, but on a 96 Cobra. That sounds really strange to be happening on a new car though? I've heard that the lines can get old and cause calipers to seize (I replaced mine when mine seized), but your car is practically brand new!


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post #3 of 33 (permalink) Old 12-08-2012
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Time to upgrade to some 2 piece rotors

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post #4 of 33 (permalink) Old 12-08-2012
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It may be on backorder but ask them if they ran it on the locator to see if any other dealers have one.

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post #5 of 33 (permalink) Old 12-08-2012
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Why would not putting on sport mode have anything to due with it?
post #6 of 33 (permalink) Old 12-08-2012
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Why would not putting on sport mode have anything to due with it?
It wouldn't ---


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post #7 of 33 (permalink) Old 12-08-2012
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This is what happened to me. The rear brake pads are shite. They will flash rust (just like the rotors) and get stuck to the rotor. Remember the parking brake does not use a separate brake pad like most do and when moisture gets in there the brake pads get rusted together with the rotor when the parking brake is appied. I only drive my car on the weekends with a wash at the end of the weekend. The car was not driven for 2 weeks prior to my brake pads rusting to the rotors on both sides.

I replaced the pads with Hawk ceramics and had to remove the old brake pad material that was rusted onto the rotor and all is good now. The brake caliper was not seized, but rather the pad was rusted to the rotor. If the OP's problem is the same as mine, more than likely the problem will happen again since Ford will use the same shite brake pads. Interesting though, the fronts have been problem free (so far). Also, in 10,000 miles this has been my only problem with the car.

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post #8 of 33 (permalink) Old 12-08-2012 Thread Starter
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Quote:
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It wouldn't ---
Umm... Pretty sure it would. When cornering, electronic stability control applies the brakes individually along with cutting engine power to make sure you don't break the rear end loose. It's settings are way relaxed when in sport mode, and it does nothing when disabled.

So in addition to my constant braking in corner after corner, it was applying brakes aggressively to keep me from sliding out... Meaning the brakes were being heated up super hot without my knowledge.

Once this is resolved Ill have some DBA slotted rotors (fronts are 2 piece) going on with Porterfield R4-S pads.

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post #9 of 33 (permalink) Old 12-09-2012
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Yep, even though the Brembo package gives you more relaxed control with advance trac on than a regular GT has, you could drive beyond those parameters and the computer could be clamping down on that disc and you may not even know it.
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It's still not going to cause a caliper to seize.... Prematurely worn out pads, yes. Calipers seize from lack of use, not too much. I've never seen an issue with the pads sticking, unless you set the parking brake and let your car sit all of the time, and that is something you should never do regardless of pad quality. If it sits for long periods of time, do not set the parking brake.

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Whoa. I had a similar problem - left rear brake pad got 'cocked'/hung up somehow in the caliper - I ended up with metal to metal contact, tore up the rotor. Replaced the rear rotors & pads last weekend with PowerSlot cryo rotors and Hawk Performance ceramic pads, I am now watching wear patterns closely.

Front rotors are on special order, I should be able to swap out the front hardware in another week or so.

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post #12 of 33 (permalink) Old 12-10-2012 Thread Starter
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Quote:
Originally Posted by 2011GrabberGT View Post
It's still not going to cause a caliper to seize.... Prematurely worn out pads, yes. Calipers seize from lack of use, not too much. I've never seen an issue with the pads sticking, unless you set the parking brake and let your car sit all of the time, and that is something you should never do regardless of pad quality. If it sits for long periods of time, do not set the parking brake.
No, not that kind of seizure... It's an overheating seizure or maybe due to a factory defect... Sure. I agree it shouldn't happen but after all the issues I've had nothing surprises me anymore.

Nothing was sitting for a long time... The car has been driven every day and has 11k miles in 9 months.

Apparently this seizure isn't common but it's not uncommon either.

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So recently I noticed when I'd brake the brakes were grinding from the back left side. I had metal on metal... The rotor was toast.

I was boggled about how a 9 month old car could have a single rear set of pads wear through so quickly.

Brought it to Ford and it turns out the left rear caliper seized. It would've been a one day job but I got a call back saying the caliper is on backorder for at least a week... Wtf?
Quote:
Originally Posted by Seventh View Post
No, not that kind of seizure... It's an overheating seizure or maybe due to a factory defect... Sure. I agree it shouldn't happen but after all the issues I've had nothing surprises me anymore.
Nothing was sitting for a long time... The car has been driven every day and has 11k miles in 9 months.
Apparently this seizure isn't common but it's not uncommon either.
Let me get this escalated to the customer service manager for your area, Seventh. Please PM me with your VIN, dealer, mileage, full name, and best daytime number so I can help.

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What actually seized? The piston or one of the slider pins? A torn boot on either can lead to this, as can a lack of lube on the slider pins.

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I'd say it is a common problem; I had my whole rear brakes (rotors, too) replaced under warranty on my '11.


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