03 Sedan- Driver's side rear caliper sticking... your thoughts
 

A few months ago I noticed my left/rear caliper sticking, so I ordered a rebuild kit from autozone, took it apart, and realized the rebuild kit (seals) were too big. Of course, autozone and other similar auto shacks did not have the parts that would fit my caliper. So, I put it back together and it bought me some time...

I kinda forgot about it and a couple of weeks ago, it sticks again and got so hot that my rotor cracked. I didn't have parts to fix, so I checked out Advance auto and they had a replacement caliper (refurbished). Installed it to get me going (with the cracked rotor) and ordered another set of rear rotors and pads.

New rotors came in so went to change them out and noticed that the new (reman'd) caliper was rusted to the point it looked like it had been there for 50 years! Took it to Advanced auto and they ordered another one.

Got the new one replaced tonight and the caliper sticks again. Took it off a few times to check if I did anything wrong and finally decided that maybe the new caliper may be defective. So, I put the rusty one back on (because i didn't have any issues other than cosmetic) and now IT STICKS TOO!

Now I'm starting to think that there may not be anything wrong with ANY of the calipers (mechanically) and maybe the problem stems from somewhere else. But, where can it be? This is my question to you. Any ideas?

Thanks in advance,
rob.g

The only part of the caliper that allows it to move are the sliding pins. Make sure they are greased properly and that the rubber boots that cover them are in good shape, no rips or tears that would allow dirt in. If they are fine there should be no reason the calipers don't "float" like they should. You might try RockAuto(or the Marketplace) for a replacement caliper, they carry several brands of remans that are inexpensive.

Can I get a free set of Nismo sides for helping you out? lolololololol

Let us know how you remedy the issue.

Thanks for the reply. Think the orginal sticking caliper caused damage to the hose. Ultimately, went to a different parts house and picked up another caliper and ordered the hose (just in case). Problem solved!
Thanks again,
rob.g

Could be your lines too based on age or if the fluid hasn't been changed regularly causing corrosion.