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You can put a volt meter across the battery terminals, if it is working you should have 12.6 or more volts. Some alternators will not charge is voltage is too low however. You can always have it tested, some autoparts shops can test it while it is still installed on your truck. Auto Zone in my local area offers this service free of charge.
What else can I help you with?
How do you know if your altinater as gone in your car?
If your battery doesn't hold a charge while running then your alternator is bad
How to know if the alternator is gone in a 98 mercury mystique?
let the car run and then pull the negative battery cable off. if the car stalls, the alternator is bad! do you know where the bank 1 o2 sensor 2 is?
Water leak under the alternator on Pontiac?
water pump or seal gone bad
What is wrong with the Vauxhall Vectra 1.8 when the alternator light comes on the dash board?
the light comes on when the alternator is bad or your regulator has gone bad. some regulators are built into the computer.
1997 ford expedtion won't keep a charge on the battery Could this be the alternator gone bad?
Auto Zone will check your alternator for free...
How do you know you have a bad alternator?
Turn car on remove positive battery terminal if car turns off alternator is bad
How do you know when the alternator is going bad?
When your battery does not get charge.
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
How do you know if your alternator is bad?
If it is makeing a noise or is not putting out at least 13.5 volts it is bad. Take the car or the alternator to an Auto Parts store and have them load test the alternator to be sure.
How do you know if french onion dip has gone bad?
You know when french onion dip has gone bad because it has water on the top.
How do you know when alternator is gone in my car?
If you question the condition of your alternator, drive to your local auto parts store and they will test the charging system for you at no cost.
How do you know when your motor has gone bad?
when it does not work
