Hellish misfire

[Aidzer0]

Good evening folks!


So, I just came back from testing the compression on cylinder 7. its a whopping 0. Nothing, needle does not budge... it sounds like the exhaust valves may be open, But I do not understand how that is possible, I did nothing in the engine that would cause this all of a sudden...



Needless to say, I am lost for words and for next steps. Should I remove the valve cover to check if the valves are stuck open? Or a collapsed spring maybe?


Bare in mind, the garage is not heated and its 5F haha.



Thanks to all that have contributed this far!! Take care ya'll!