Chosen Solution
I dropped Coca Cola on the keyboard. The computer is still working but trackpad and keyboard keys are stuck and very hard to push. How can I fix/clean it? It’s a better solution to buy a new top case like this one? MacBook Pro 15" Retina (Late 2013-Mid 2014) Upper Case Assembly
Don’t trust the “it’s still working”, don’t use it until you have checked internal conditions, don’t plug in magsafe and disconnect battery from the logic board. Use these guides to remove and clean logic board and I/O board and to properly take care of the spill. It is quite likely you will need to replace the upper case, there’s no real way to clean it without replacing KB. If you can find someone who will be able to take care of the keyboard only replacement that might save you some money. MacBook Pro 15" Retina Display Late 2013 Logic Board Replacement MacBook water damage - The definitive guide
