Nope, not when it's dead. Most modern alternators and all Jeep alternators starting in YJ years require power from the battery to produce power so the ignition system is operational. Most alternators are no longer self-exciting which means they need to be connected to a good battery to work. You can bump start a Jeep with a weak battery but not a dead one. Those days are over for most vehicles.... Oh and I can bump start a dead battery :eusa_dance:
A Jeep engine won't even stay running for long after being jump started once the jumper cables are disconnected if the battery is dead.
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