MACBOOK PRO POPPING SOUND
I was browsing on safari and listening to songs. As my MacBook Pro heated after 5 minutes I heard a popping sound , I am sure it came from gap between the display and touchpad.
MacBook Pro with Touch Bar
I've heard popping sounds on the USB-C Apple laptops, but am unsure where the sound is actually coming from since it is so intermittent. To me it sounds like the Bottom Case is expanding/contracting due to temperature differences as the laptop is used and/or moved. Unless the sound is occurring often (regularly), then I think this is just normal (assuming the sound is the same as what I've heard with some or our organization's USB-C Macs).
You can always have Apple or an AASP examine the laptop as well.