1987 K5, 350 TBI, 700r4. Driving at night and all of a sudden,how else does it happen, engine stops, lights go out, stereo turns off n resets, then truck starts to run again. Does intermittently. Does it without lights on during daylight too. All power goes out. But cannot trace it as it doesn't always do it. Does anyone have any suggestions. Has anyone experienced this before? Before I get tagged with, check previous posts, do a search, I did both of those and found no answers to this question. Thanks in advance for any helpful information.