Aargh" the filament gets stuck in the tube (cr-10)

[lugiber]

I have had my Creality cr-10 for a few months. But suddenly my filament starter to get stuck in the tube so I can't print anymore.
I have really searched the internet for some answers. But I have found none, thats why i'm asking you for help.
This is what I've done:

Replaced the extruder
Replaced the extruder cog.
Rep?aced the filament tube
Replaced the filament connectors
Increased the preassure on the filament cog.
Replaced the filament with a variant that used to work.

In my opinion I have done everything that's possible to resolve the issue. But nothing seems to work.
Do you guys have any ideas?

Edit, I'm using ABS at 240 degrees and the bet at 90 degrees. Nothing special...