I double checked the guide pins today, turns out the lower one was seized. I only checked the top one the other day. So I'll get this corrected and see how it goes and skip replacing the caliper for now.

 

I ended up cleaning and regreasing the pins on all four corners, most of them were pretty cruddy. Totally worth the effort to avoid future issues.

 

The seized pin is pretty corroded and the rubber has a tiny split. I cleaned it up and greased it for a temporary fix. Will order some new pins tonight

 

Just replaced the guide pins which seemed to help a little but the wheel is still getting hot. Guess it's time to replace that crusty caliper

 

I posted last week on this same thread that I had fixed my issue by unfreezing the guide pin, greasing and assembling. It worked for a few days. Had to replace the caliper on Friday. Exact same symptoms you have had. The guide pin repair held me off long enough to get the caliper in the mail.

 

Ended up replacing the caliper and carrier with a remanufactured one. Brakes are back to normal now.

 

Been here done that. I found that when just replacing the guide pins, the bracket will eventually start "clicking" when you hit the brakes, and it's due to the guide pin "bushings" in the caliper mount being worn out just like the pins were. I haven't found a source for the bushings, You might as well just replace the entire bracket like the OP did.

 

I can second that. I had the same problem as the OP where the bottom guide pin was seized. I worked it free last week and lubed it up. Now a get a click when I apply the brakes, which is new. This explains it!