Engine sounds slush GZE with VIDEO !

[Okami]

Hey guys,

Rather than starting another thread/topic...

I have a question for you guys.
namely:

I have recently installed a D1 spec oil cooler + oil relocation kit.
Before that I also used the D1 spec oil relocation kit but with another oil cooler. (very shitty quality).
Now I have everything from the D1 spec brand and its way better...
However,

Since I came back from the shop - I have this sound while driving...
sounds like the teletubbie vaccuum cleaner or better example - a frying pan with junkfood in it...
watery type of sound...

It may either be the cooling liquid that has air in the system or maybe my relocated oil filter.

What could I do at home to fix this myself?

You can only hear it when driving.
If you guys wanna hear the sound - I could upload a movie to youtube where you can hear it quite good!