Strange creaking noise from brakes

Pulling up this old thread as my brakes make the same sound as in the video in this thread. I pulled the caliper slide pins and just like the OP I briefly was under the impression that the noise was gone. Today, waiting in the drive thru lane to get my morning coffee the noise was back and prominent as ever. My pads are new and the disks look smooth. These were done by the seller in about Feb, 2018. I'm hoping a full brake disk/pads/caliper job is not in the near future. For now, the brakes function absolutely fine so I will simply live with it.

Any idea on what part may actually be causing this sound? It can't be the glide pins as I cleaned and buffed them smooth prior to re-greasing. I did note that the back of the pads looked a little rusty where the caliper arms contact them. I should have put grease at these locations but I was in a rush to finish. And, I really thought it would be the glide pins. Does anyone think the calipers on the rusty pad surface would be enough to lead to the unique noise?

Paul

 

Anti-seize compound at the contact points between caliper (or caliper piston), shims and pad backs might help, it's standard practice to put a thin/uniform coat at all such interfaces. Toyota's less in favour of anti-seize than Honda, recommends "disc brake grease", just at the slits in the inner shim, but it looks to me like the brake configuration is pretty much the same, and old habits die hard, lol.

The shims are in there? You don't mention shims.

 

This is what I was going to suggest, as it is all I can think of, if the slide pins are lubricated and move freely. But ...

... as mentioned by Mendel in his post, you only need to add some disc brakes grease to where indicated by the white arrows.

Being the curious type I bought some OEM disc brake grease and it looks to be a graphite type grease, so anti-seize will probably work. Just as long as it can tolerate up to 1200ºC.

I won't be buying that grease again, as it was prohibitively expensive, but at least I know what it looks and feels like.

I also bought a tube of the OEM lithium soap base glycol grease and that was very cheap. This is what you use on the slide pins and the piston, etc indicate by the black arrows in the diagram in the attachment.