Can you Jumpstart a Car With a Bad Alternator?

Yes, it is possible in some cases to jumpstart a car that has a bad alternator, as long as the battery has enough charge to keep running.

It is generally not recommended to jumpstart a car with a bad alternator. When you jumpstart a car, you are using a separate battery to provide power to the vehicle’s engine in order to start it. The alternator is responsible for keeping the car’s battery charged once the engine is running, so if the alternator is not functioning properly, the battery will eventually run out of charge.

However, if the battery is still in good shape and has enough charge, you can still jumpstart the car even if the alternator is not working. The jumpstart will provide the necessary power to start the engine, and once the engine is running, the faulty alternator will not be able to recharge the battery.

This means that the car will only be able to run as long as the jumpstart battery has enough power, and the engine will not start again once the jumpstart battery is drained or die.

However, if the alternator is providing at least some power to the car, it’s possible to start a car and drive straight to the garage – just make sure you turn off anything that isn’t absolutely necessary.

It is important to note that a faulty alternator will eventually lead to battery failure, so it is important to have the alternator repaired or replaced as soon as possible. Jump-starting a car with a faulty alternator is only a temporary solution and should not be relied upon as a long-term fix.

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