I woke up and car was dead, I jumped it and let I run for acouple min, I drove it acouple blocks from my house and car died when I pushed my breaks, my radio went off right before my car died, I jumped it again to drive it back home. I replaced my alternator, car drove fine for 2 days and every time I turn off my car, I need a jump. While driving when I push my breaks right after jumping my car dies. Able to drive after car is running for acouple min. What do u think the problem is?

Bad alternator AND a bad battery... (because because deeply discharging even a new battery will damage it.)

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Originally Posted by smoothy

Bad alternator AND a bad battery....(because because deeply discharging even a new battery will damage it.)

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So that I already replaced the alternator all I need now is a? Battery?

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Originally Posted by jheebner

So that I already replaced the alternator all I need now is a? battery?

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Take the battery to an autoparts store... and have them charge and load test it. But what you describe in your original question points at a bad alternator... a car can actually run without a battery once its started because the alternator supplies more than enough current to keep it running... but don't try it... the process of disconnecting a battery cable or reconnecting it while the car is running carries the risk of damaging the regulator or diode pack in the alternator, (most cars have them internal).the same store can test out your alternator too... even new ones can be defective or fail... I've actually had that happen.

Quote:

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Originally Posted by smoothy

Take the battery to an autoparts store...and have them charge and load test it. But what you describe in your original question points at a bad alternator.....a car can actually run without a battery once its started because the alternator supplies more than enough current to keep it running.....but don't try it.....the process of disconnecting a battery cable or reconnecting it while the car is running carries the risk of damaging the regulator or diode pack in the alternator, (most cars have them internal).the same store can test out your alternator too......even new ones can be defective or fail......I've actually had that happen.

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Ok thanks