AlbertoGR

There's an issue I had all the past winter or so but now the hot weather seems "solved", the power lock and electric windows work, kinda, the power lock needs a few strokes and the windows, all of them, run really slow (also, I have a wiring problems and right now nothing works). The weather strips are worn out and mostly for scrap, those are the factory ones, and the car was used by the previous owner as farming car, so there was a ton o mud and crap inside the doors. Every parts of those systems is factory, could be an excess of crap in the door and windows mechanism the issue or too old motors? The window motors seems to run just fine without load. If it is, how can I clean the lock mechanism interior? Also, the push button is hard to push as heck, many people can't even open the door.

PatHenry

Slow window operation is almost certainly worn motors. They will run better without a load, but a new motor will run well with load.

The sticking push button could be dirt, but I would guess it's old and corroded and the original lubrication has dried out. You could take the mechanisms apart and spray some spray lubricant on all the moving parts and see if it improves.

BlueRidgeMark

Yes. BTDT.

Had the same problem. I sprayed with a penetrating oil (PB Blaster), and worked the mechanism, sprayed, worked, sprayed, worked. I used a bunch of penetrating oil and sopped up the runoff with paper towels. A lot of gunk came out.

Once I had it all cleaned up, I used a light lubricating oil. Things worked like new after that.

Go for it.