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Old 07-18-2012, 09:44 AM   #1
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Stuck Brake Caliper

Ok, so did a search and couldn't find any threads that had been followed up with a solution.

Yesterday I hear the right rear brakes grinding, so I pick up the pads and go to change them and the inside pad is trashed, the clips were almost ruined. I can't get the piston to compress almost at all, bleeder valve is open and some fluid came out but not what you'd expect. I have jacked up the threads on two caliper spreaders and am now at a loss what to do..

Am I stuck buying a caliper at this point? Or is there something I'm missing? Car has ABS brake BTW...
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Old 07-18-2012, 09:47 AM   #2
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You need to buy a new caliper. It seized
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Old 07-18-2012, 09:54 AM   #3
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Figures..
I've never had issues like this with brakes before!!
Idk that I've ever bled brakes on anything but my bikes, much less opened a bleeder valve to spread a caliper!
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Old 07-18-2012, 10:30 AM   #4
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Quote:
Originally Posted by deadsp0t
Figures..
I've never had issues like this with brakes before!!
Idk that I've ever bled brakes on anything but my bikes, much less opened a bleeder valve to spread a caliper!
I usually don't open bleeder. I take a square piece of steel just a bit bigger than piston and I compress piston with a c clamp. Usually don't need to bleed brakes if I do it that way.
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Old 07-18-2012, 10:33 AM   #5
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Quote:
Originally Posted by Meansaleen

I usually don't open bleeder. I take a square piece of steel just a bit bigger than piston and I compress piston with a c clamp. Usually don't need to bleed brakes if I do it that way.
Similar here! That's why this was aggravating! Plus it's almost 100* outside lol
After 8 years in an air conditioned factory in AC spoiled
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Old 07-18-2012, 11:09 AM   #6
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If you've got access to an air compressor you can remove the bleeder and using an air nozzle with a rubber tip you can blow the piston out. Hone out the piston chamber and replace the seals for just a few bucks. Even if you decide to just buy a new caliper be sure to replace all the hardware too! And remember, grease is your friend, just don't rub it on the brake pads. Lol

In the past if I couldn't collapse the piston using an old brake pad and a big pair of channel locks, I'd pull the caliper and rebuild it.
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Old 07-18-2012, 11:16 AM   #7
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Re: Stuck Brake Caliper

There are some calipers that need a special tool to compress them because they have to turn and compress at the same time,but I don't know if your year has those calipers my 98gt had them.
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Old 07-18-2012, 11:16 AM   #8
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You can probably rebuild the caliper but it might be cheeper/safer to buy a replacement. Those rear calipers are fairly cheap.
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Old 07-18-2012, 11:22 AM   #9
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Just replace it. It will be much less stressful in the end. My friend had this same problem but on both sides in the rear. He tried and tired to fix it and eventually he just warped his rotors. And he still ended up replacing the calipers anyway (and obviously rotors).
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Old 07-18-2012, 11:32 AM   #10
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Thanks for the quick replies and knowledge!! Believe I'm going to just replace cause my wife uses the car as much as I do and often has my daughter with her! I'll take some pics and update the out come for future searches!! Thanks again ppls!!!
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Old 07-18-2012, 11:35 AM   #11
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Good luck man! And if you need anything, here's some ants...Click image for larger version

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Old 07-18-2012, 11:38 AM   #12
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Good luck man! And if you need anything, here's some ants...
Word!!! They will do my bidding!!!!
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Old 07-19-2012, 10:38 AM   #13
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Ok so apparently REAR disc brake require a disc brake master kit tool to compress the piston. It actually spins the piston into the caliper which is why I ruined my caliper spreaders!!! Cost $100 bucks to rent the kit but I got all of it back when I was done! Rented at Advance Auto. Here are pics..



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Old 07-19-2012, 10:50 AM   #14
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Yeah. Sorry I thought someone had mentioned that or I would have said something. My very first time on rears like that I ruined a c clamp. But I can usually get away with using channel locks.
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Old 07-19-2012, 10:53 AM   #15
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Looking back, Kev mentioned it lol
On my old 95 I didn't need a tool that I remember!?
Maybe cause it was a GTS and didn't have ABS?!
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Old 07-20-2012, 01:13 AM   #16
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Quote:
Originally Posted by deadsp0t
Looking back, Kev mentioned it lol
On my old 95 I didn't need a tool that I remember!?
Maybe cause it was a GTS and didn't have ABS?!
The 95s are the same. I assumed u knew. Based on your number of posts haha. Those kits are worth their weight in gold. Fyi, harbor freight sells the same kit for 21$ if I remember right. Im gonna get one because my city only has 2 of them and last time I got lucky. Next time? They also sell these little steel blocks which can easily be modified to do it. But they're a lot harder to use.
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Old 07-20-2012, 01:28 AM   #17
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Quote:
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The 95s are the same. I assumed u knew. Based on your number of posts haha. Those kits are worth their weight in gold. Fyi, harbor freight sells the same kit for 21$ if I remember right. Im gonna get one because my city only has 2 of them and last time I got lucky. Next time? They also sell these little steel blocks which can easily be modified to do it. But they're a lot harder to use.
Swear I didn't need it on my old car, although I could be wrong I guess.. I know when I searched e1 said they bought a new caliper too..

They had the block but none of the tabs were even close(checked against the kit and a new caliper).

Oh well maybe my mistake will help someone else out one day.
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Old 07-20-2012, 09:29 AM   #18
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Quote:
Originally Posted by deadsp0t

Swear I didn't need it on my old car, although I could be wrong I guess.. I know when I searched e1 said they bought a new caliper too..

They had the block but none of the tabs were even close(checked against the kit and a new caliper).

Oh well maybe my mistake will help someone else out one day.
Yeah, those little blocks have to be.modified. I used a little dremel to cut 2 of the pegs off the one side then it fits perfect. But that kit is worth its weight in gold. Way easier and those pistons are actually pretty soft metal and the cubes slip easy damaging the piston. Glad you got it sorted!
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