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Your local autoparts store can test the electrical system of your vehicle to determine what is At Fault.

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Q: How do you know if you have a bad battery or an alternator?
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Related questions

How do you know when the alternator is going bad?

When your battery does not get charge.


How do you know you have a bad alternator?

Turn car on remove positive battery terminal if car turns off alternator is bad


I have a 2003 Chevy impala how do i know if i have a bad battery or bad alternator?

To test the alternator if funds are low, let the motor idle and remove the negative battery cable, if the motor dies its probably the alternator.


Why isn't your Mazda truck alternator not charging your battery?

bad alternator, bad voltage regulator, bad battery, bad connections.


How do you know if 2004 dodge ram 1500 alternator is bad?

with vehicle running pull posative side battery terminal off if it quits alternator is bad


How do you wire alternator to a battery to test alternator?

run it and then disconnect the negative wire from the battery if alternator dies its bad.


Why does the battery light stay on after replacing the alternator 2009 Chevy Malibu?

You might have a bad battery, a poor connection between the battery and alternator, or a bad ground from the battery.


How do know when alternator is bad?

If your talking about cars... If you smell a burning smell, or your red battery light comes on then i would get your alternator checked out!


MY car battery light is still on after the alternator and the battery has been changed. The battery cables are clean and well attached. Now what?

Battery light usually means alternator not charging. Most common solutions would be be a bad alternator, bad connection, or loose alternator belt. A replacement alternator can be bad. If it is ok than most likely a poor connection to the alternator.


What can make a car battery die when running?

It sounds like the alternator is bad. If the alternator is bad the battery will not hold charge when running


How do you know when alternator is bad?

Typically you know your alternator is out when you have to jump start your car numerous times. A way you can test it is by turning on your car and while it's running discount the + terminal. If the car turns off then your alternator is bad. If the car remains in then alternator is good and possible bad battery. Hope this helps


Will a bad alternator keep a 1999 S10 pickup truck from starting?

The answer is no . The battery starts you vehicle , the alternator charges the battery so if your alternator is bad your battery is not receiving a charge which will cause a "no start" condition.