vehicle losing power and shutting off while driving on 1997 Oldsmobile LSS

My vehicle is a supercharge and keeps shutting off and loses all power while driving. The dashboard and all lights flicker before it shuts down completely. Then the power comes back on after about 15 seconds. What is causing this and how can i fix it?

Asked by for the 1997 Oldsmobile LSS
I had this issue once. It turned out the positive side of the battery cable was loose/intermittent. Check all main connections from the battery to the fuse relay center, alternator, starter, as well as the engine block.