Compression question

What is your question?

Why does my Sable have no compression in number 2 cylinder and good compression in the other five cylinders

What makes this problem better or worse?

Well maintained car the problem is new. It had a miss so new plugs n wires coil pak installed and miss still present so compression chk showed #2 had no compression while other five are goodno

How long has your 2002 Mercury Sable had this problem?

A few days