My wife's nephew has a 93 Cherokee Sport. It stalls and won't start again unless he pulls the battery cable. After reattaching it will run for a few minutes but die again. Now, a little history: The radiator was leaking so he had to replaced about a month ago. Then the batter died so he replaced that. A few days later the car was and it wouldn't crank. So we figured a bad alternator. I helped him replace that and he drove about 10-15 miles before the problem stated above. The battery still has a charge and will crank the engine, the engine just will not turn over until the battery is unattached and then reattached. Any ideas?