How to Test Engine Compression

Here is a quick video on how to test engine compression. Getting to the spark plugs will not be the same on different vehicles, but using the tester will be the same. This test is done to diagnose bad head gasket, piston rings, or bad valves.
Compression tester I have: actron.com/content/profession...
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Note: Do this repair at your own risk! I am not responsible for any injuries or deaths. Improper use of tools, vehicle lifts, jack stands, electrical equipment, cleaning/penetrating oil/fluid and other chemicals and tools used in this video can result in serious injury and can be fatal.
Channel tags: Mighty Mechanic, MightyMechanic