Car stops running completely but starts up again for brief time
Driving car on highway when lights began to dim-pulled off and it quit completely-shop installed new battery-drove 2 miles-same problem-waited half hour/it started-went a few blocks-quit again (repeat 3 more tinmes) Shop is baffled because they can"t "re-create" the problem. Not the altenator because it re-starts and runs briefly.