This repair took me about 10 minutes and fixed a really annoying problem: an internal door hinge that squeaked every time I opened the door.
You’ll need a hammer, flat-head screwdriver, something short that can stick up into the hinge, steel wool, petroleum jelly or another similar lubricant (lithium grease), and a few cotton swabs.
First, i identified which hinge was squeaking. In this case, it was the bottom hinge on the bedroom door;
If you look closely at your hinge, it should have a little gap between the head of the hinge pin and the two brackets. You may be able to slip a flat-head screwdriver in there and just pry it up.
In my case, I had to force the pin out by sticking a short screwdriver in the bottom and tapping it with a hammer.
The hinge pin was filthy, covered with black stuff.
I scrubbed it with a little steel wool and washed it with dish soap. Then I dried it. It looked a lot better.
I also swabbed out the hinge bracket with some cotton swabs. Here’s what THAT produced!
Then I lubricated the hinge pin with a little petroleum jelly and inserted it back into the bracket.
I tapped it down with a hammer, and voila! no more squeaking – from that hinge!