A1708. Slow and fan spinning full blast

[KootenayMacGuy]

Hi there.

I have an A1708 13" MacBook Pro. 2017 Year. I have no history of this MacBook. After removing bottom cover everything is clean and appears new. There is no indication any work has been done. Everything functions as it should, just high fan speed and system runs extremely slow. I removed the logic board and checked all areas of the board with my microscope and there is no corrosion anywhere. Where do I go from here?

 

[2informaticos]

Should do a PRAM reset first.
Also test with other SSD, or USB macOS.

Try disconnecting webcam cable.
Run HWMonitor and look for any strange value.
Trackpad board/flex can generate this issue too.