How do you know if your alternator is going out if it's still charging your battery?
Feb 18, 2016 at 9:02 AM
Alternator
CARLINIETO47
- MEMBER
- 1 POST
Read the battery voltage before you start the car then read it again while engine is running it should read within 2 volts if not there's a problem.
For example its 12.5 before you start the car and it reads 14.5 while running-the alternator is doing its job
For example its 12.5 before you start the car and it reads 14.5 while running-the alternator is doing its job
Feb 18, 2016 at 10:25 AM
CATAFINA IS SPEAKING "ELECTRICALLY"
IF IT'S SQUEALING OR MAKING A GRINDING SOUND, "MECHANICALLY", THE BEARINGS OR BUSHINGS INSIDE MAY BE WORN OUT OR FAILING.
THE MEDIC
IF IT'S SQUEALING OR MAKING A GRINDING SOUND, "MECHANICALLY", THE BEARINGS OR BUSHINGS INSIDE MAY BE WORN OUT OR FAILING.
THE MEDIC
Feb 18, 2016 at 11:18 AM
Also if a diode is going out the alternator will change the battery with AC voltage which is bad, here is more information on how to test it correctly.
https://www.2carpros.com/articles/how-to-check-a-car-alternator
let us know what you find
https://www.2carpros.com/articles/how-to-check-a-car-alternator
let us know what you find
Mar 7, 2016 at 6:19 AM
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