Right bank misfire all cylinders
 

2001 Durango 4.7L all of a sudden upon cranking one hot summer day it started missing on right side. No prior issues. No codes no check engine light yet. I turned it off and left it alone. Any ideas? Checked oil nothing usual checked coolant it was a half gallon low. Checked plugs they were all wet on that right side no funny noises, bout to do a compression test.