Why does my ps4 make a noise like a car engine

About a day ago my ps4 was fine but then when I was playing a game it started to make a noise as if it was a car engine. I turned it off and left it aside to clean it later the next day. Cleaned the fan and thought that maybe it. Started up normally but as I tried to play a game the noise returned. I touched my ps4 and was getting hot a little more than usual. So I closed the game hoping it would make the noise stop. The noise slowed down. I turned the ps4 off and took the bottom case off to see what was making the noise but it didn't make that noise until I started up a game.

I have no clue what it is that is causing it and any search for the noise doesn't sound anything like it. The noise is very loud that I was worried that my teammates would hear it in the chat feed. The area that gets hot is near the fan so at most I think problem may be there or somewhere close.

Update:

Upon following the guide to replace the fan to just cleaning the fan with canned air. The ps4 appears to run smoothly I have yet to insert a game into it. Hopefully the problem is solved but if I insert the game into the ps4 I think I might hear that noise again. That’s only a theory and I hope it stays that but I will update if its proven.

Upon further inspection it would appear to be the fan. I won't know for sure until I order the new fan.