Rear caliper seized - Kia Forum

 
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post #1 of 9 (permalink) Old 09-01-2018, 10:51 PM Thread Starter
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Rear caliper seized

The rear caliper has seized up on my sister's 09 spectra. I'm headed to the salvage yard tomorrow to get a replacement. What should I look for? The one on hers has a torn piston boot. Other than that how do I check that the replacement isn't just as bad?
I can't start the donor car. All fluids are "supposedly" drained. No battery either.

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post #2 of 9 (permalink) Old 09-02-2018, 04:26 AM
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Take a spreader and see if it moves with little force. Without fluids, it should. DO NOT push it in far, however - what causes them to seize is pad dust baking onto the side of the piston. You need to remove it.

On motorcycles, you should clean the sides of the pistons at each pad change. After removing pads, pump the system to push the pistons out, carefully so that you don't pop one out completely (most front calibers are 4-piston, some 6), then clean with brake cleaner and a toothbrush. They typically take little effort to clean up like new.

Of course it helps you need to remove the calipers on most motorcycles to get the wheel off. Cars are designed to allow pad replacement without caliper removal. In your case, not an issue..
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post #3 of 9 (permalink) Old 09-02-2018, 05:43 AM
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I know the feeling of that happening. As a fellow NY'er in our wonderful rust belt area, get a reman PAIR of calipers from rockauto! price is not bad at all. The parking brake actuator is inside the piston of the brake caliper and are problematic at best on a 10 yr old vehicle.
I did that with my daughters 09 last year and have NOT been sorry for a second about it!
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post #4 of 9 (permalink) Old 09-02-2018, 06:12 AM Thread Starter
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Thanks for the info about the re man. Her father is the primary driver. He said that he try a rock auto reman after the salvage part with considering the cost of shopping shipping back the original core.

I'll write back after we get them swapped out.

I'll try pumping the brake on the donor car a little to see if it moves for $10 it's a good first attempt.

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post #5 of 9 (permalink) Old 09-02-2018, 06:42 AM
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Is it possible that you need the below tool to retract the piston?





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post #6 of 9 (permalink) Old 09-02-2018, 06:55 AM
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Sorry Ron, but the retracter tool pic didn't come thru. But YES that will be needed, I already have a "universal" tool. BUT with the rust and corrosion that happens with our NY cars, They have much trouble with the caliper assy. for the parking brake portion anyway. Been there Done that on our 09 Spectra...DO IT RIGHT and be done with it, I seriously doubt in a car from the OP's area that USED parts would be in any better condition than what he has.

EDIT: As I submitted my response and came back to the main thread...your attachment came thru, YES that will be needed! That is the tool I already have (and had for AGES)!

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post #7 of 9 (permalink) Old 09-03-2018, 07:31 AM Thread Starter
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I have tried to use the cube to rotate the piston back in. It doesn't seem to move. I got one from the local salvage yard. I spent hour and pulled the wrong one. So I went back and got the correct side. The piston rotates fairly easily. However the piston boot is binding and sticking to the sides of piston. How do I correct this. I have been told a reman isn't in the budget. To be honest, the cost of shipping the core back is kind of high.

How should I correct this?

Also does anyone know what the correct banjo washer is? I don't have a measuring caliper anywhere.

It looks like none of the national auto parts stores lists what banjo washer and bolt fit the calipers. In my research, I looked at the rear brake hoses and calipers on RockAuto. It appears that the "inlet" in 10 mm. I see how many "inlets" are listed as 10mm. I'll pick up all the 10mm options and see what fits best.


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post #8 of 9 (permalink) Old 09-06-2018, 08:15 PM Thread Starter
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I reused the banjo washer from my original for now. The parking level assembly is different from an 05 to 09. So I'll try to swap the parking assembly over in the future or rebuild the frozen one.

We will give it a test drive tomorrow and report back.

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post #9 of 9 (permalink) Old 06-13-2019, 06:44 AM Thread Starter
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Forgot to report back. My father in law said the junk yard caliper is working and holding well. However, it's time for Cuomo to get his $22 for safety and emissions. The 04 spectra caliper doesn't mate up to the parking brake cable. I need to rebuild the old caliper.

I'm fine with doing it, since there is no room in the budget for replacing both calipers with remans at the moment.

What more do I need to know? I have replaced calipers before, but not rebuilt.

I got a seal kit from AAP. I don't have a compressor. Can I unscrew the piston to get it apart? I found this parts diagram for an 04 elantra.

https://workshop-manuals.com/hyundai...ont/page_6264/



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Last edited by thesavo; 06-13-2019 at 06:50 AM.
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