The F-22 may be the most advanced jet fighter in the world (of the fifth generation), but it has one thing in common with every other fighter. It needs to get unengined, serviced, checked, and test fired every once in a while.
In the video above, you can see the F-22 getting unengined and fully tested (afterburner test). The fighter actually has two Pratt & Whitney F119-PW-100 engines, each with a dry weight of about 5,000 pounds or 2,270 kilograms.