How To Determine If Your Alternator Is Bad. When bearings on the inside of the alternator are worn out it can cause this type of noise. The best way to find out whether your car needs a new alternator or a new battery is to test both components.
Dimmed or flickering headlights Since your headlights require power from the alternator to perform well its common to experience issues with them if the alternator begins failing. If you sense electrical fire smells or smells of burning rubber your alternator is most likely working way too hard and its possibly even burning your wires in the process. If the alternator is mounted improperly on the bushings you may hear a rattling noise.
The headlights the battery andor the interior lights appear to be weak.
If your car doesnt start or isnt running at full power it may be your battery. How to tell if your car battery is bad weak or dead. The only way that you can tell if your alternator is going bad is by checking up on the list above and seeing whether or not there are any signs that it is going. DMM I recommend httpamznto2yhX2za.
