90's Durango - Mechanic told friend to scrap

toolmanmike said
Geez guys, crank it over. You can hear if it has timing chains out. If (if) it turns over it will sound like the spark plugs are out.

I'm gonna go over there, not sure when, and check it out. I have a compression tester and can test fuel pressure. I figured, it would sound off if the chain did break, while I cranked it, if it did crank.