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03 CTS 3.2L (Sold) / 09 CBR 600rr /2014 GMC Sierra
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7,872 Posts
Discussion Starter #1
What is the proper way to reload the pistons in the breaks
For the cts (03 lux sport)?
Can I just use channel locks and press them back in
Just like other gm's? Do they have to be compressed at equal
Incriments with a brake spreading tool?
I also saw a gm pistin reloading tool that was a cube
You attach and use a ratchet to reload them.
Which one works best? I was just going to use channel locks
And press against a old brake pad to not damage any
Components but then I saw this cube tool....
Thanks for any info.
 

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CTS 03
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1,765 Posts
I just used channel locks, Remove the cap for the brake fluid resevoir first, use the old brake pad as a buffer.
 

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03 CTS 3.2L (Sold) / 09 CBR 600rr /2014 GMC Sierra
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7,872 Posts
Discussion Starter #3
Did you drain any fluid from the caliper?
I've heard people on here say they did it but
How required is that?
Thanks for the tip on the cap, I wouldn't have
Thought about that.

My rotors should b in this week and pads next week,
No more rusty rotors!!!....for this summer lol
 

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2012 Cadillac CTS-V, MN6, Driven Daily
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45 Posts
If you never added fluid as the pads wore down there should be no need to drain before pressing pistons back in.
 

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CTS 03
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1,765 Posts
No more rusty rotors!!!....for this summer lol[/QUOTE]

When I did my brakes and got new rotors, I painted the non-contact areas with high-heat rustolem paint so they don't show rust. It sucks when you have nice wheels and your brakes are rusting. It's a little work but it looks nicer in the end.
 

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03 CTS
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359 Posts
I just did all the breaks on my car. Some say that it is good to open the line on the caliper and then press the pistons back in. Don't really know why. If it is a sealed system then there shouldn't be any contaminate in there. I just use the old break pad and a large C clap to get them back in.
 

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2014 SRX AWD Platinum Ice/2010 CTS Sedan 3.6 AWD Silver
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644 Posts
Same here ... just pushed them back using a C-clamp and the old pads. Just do it gently and slowly. Same procedure front & rear.

-GT
 

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03 CTS 3.2L (Sold) / 09 CBR 600rr /2014 GMC Sierra
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7,872 Posts
Discussion Starter #8
did you guys use any sort of pad glue or anti-seize?
i got to do the brakes on another car...i had mine done by a mechanic for the cadi, i did mine on my truck but they arent releasing properly...they are dragging.
 

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NONE - was 2006 CTS. Now 2012 4LT Centennial GS Corvette
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388 Posts
Brake fluid is hygroscopic - it absorbs moisture with time. The steel and rubber lines also deteriorate so you get contamination from them. Your braking performance goes down as the fluid gets more contaminated.

I haven't read that part of the owner's manual yet but most GM vehicles recommend a brake fluid flush every 5 years. I try to do mine on schedule at a minimum. It's amazing how filthy the brake fluid gets.
 
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