No videos in a service manual! Eyeballs and a prybar. Sometimes you can feel the play also. Two man job. One watches. At the correct spot, can wiggle the prybar and watch the joint wiggle if badly worn. If it is a balljoint popping, it is very worn. Look at lower 1st, then upper, then each piece around, like control arm bushings, shock mounts-everything else. Bright light and 5 minutes and you have checked both sides and steering components.