How To Jump An Alternator. Jump Starting Your Battery. How to jump start a car with a bad alternator.

Park the good battery vehicle as close as possible to make the connection. If jump starting gets your engine started and running but the car will not start again once you turn it off the battery is probably the problem. This method will use the alternator of the jump vehicle to charge the dead battery on the other one.
Keep an eye on how far youre able to go before the battery dies.
If jump starting gets your engine started and running but the car will not start again once you turn it off the battery is probably the problem. Then you need to remove the jumper cables. The first is through using the cars alternator. You might have to wiggle the alternator around to squeeze it back into place in a crowded engine bay.

