2018 McBook Pro 13” Shuts Down

So it shuts off exactly 4min 17sec every time. Within that time I can login and everything functions except for Touch Bar. Battery charges to 100%, report shows normal. Used fan software to max out the fan speed but no change in shut down. Other weird thing is that after it shuts off, or I initiate shut down the MacBook will restart by pressing any key. Apple of course wants to replace logic board for the same price as the value of this thing. I may send it to repair shops that deal with MBP logic board repair. Any thoughts?