the common cause why the light is on is that your alternator is not working well,try to have your alternator checked .may be the carbon brush is already worn out.
No. If the alternator is working fine, the battery power is not used.
Charging system is not working properly. Have the alternator tested at any auto parts store for free.
needs a coil or distributor it could also be that the alternator isn't working and the car may be draining the battery every time you drive it
It depends on what kind of car you are working on, but it sounds like it can be an external voltage regulator, or even a fuse Some vehicles do not charge with out a rpm signal. The cause of the tach not working may also fix the alternator.
the battery will not charge.eventually when battery is flat the car will not run either as both battery and alternator ,togeher complete the electrical circuit
It doesn't actually drain the battery, but without a working alternator to recharge the battery it will only discharge as the car is operated.
I am having the same problem with a 99 Protege. I have changed the alternator and aligned/cleaned the pulleys and the problem persists.I replaced the alternator, on my 1997 Mazda Protege, seven times before someone figured out why the serpentine belt kept breaking. It was the belt tensioner! It had to be removed and rebuilt. Now it is working like a charm!! And I havn't had to replace the alternator in over 3 months!!!!
Depends on how low the battery is but give it 10-15 minutes and it will be fully charged, assuming the alternator is working properly.
alternator is not working so your battery isn't getting a charge
If the battery and alternator are good and the charging system is not working, then you either have loose or corroded wiring or the drive belt is slipping.
Most likely your alternator is not working properly.
The voltage regulator is not working properly.
If the alternator is not working the battery gets discharged. In most cars a light will show on the dashboard - battery light icon, and this will suggest fault in the battery or alternator. You will need to start the car and check if it is charging the battery, and most garages will do this check for you
Is the alternator actually working. It is possible to buy a new alternator that is defective.
no, the light has nothing to do with the alternator working properly, the light is only to warn you that it isn't charging the battery properly.
something is wrong with the alternator, either it isn't working or it is not hooked up to the positive terminal on the battery. check your wires first before you assume you have a bad alternator, if it is hook up right and the wiers look fine then check to make sure the belt is not slipping on the alternator pully, if not then your going to need a new alternator and battery charge. because if your alternator is not working your car is getting all its power from the battery
Alternator not working properly or not connected properly. Wherever you bought the alternator take it back and have them check to make sure it works properly. Also make sure the new battery was fully charged when you received it. HTH.
Either the battery is bad and won't accept a charge or the alternator is not putting a charge into the battery. Have the battery tested. You can hook up an inexpensive volt meter to the battery while the car is running. You should see from 13.5 to 14.5 volts if the alternator is working properly. If it is less than 13.5 volts then the alternator is not charging.
Check the battery with a vom meter while the engine is running. It should read about 14.5 volts and if so the alternator is working, than have the battery checked Now if the meter does not read 14.5 volts, have the battery, and the alternator checked. If they both check out okay, the problem is in the battery or the alternator circuit on the vehicle.
No, that is normal. An alternator is good working order will output between 13.5 to 15.5 volts.
Only if your alternator is not working properly. If you are always charging your battery, check your alternator belt. That was the solution for my escort, a new $10.00 belt.
It could be two things. As you know, the alternator charges the battery so it will not drain. If the alternator is not working properly to charge the battery, the battery will continuously drain. Have the alternator tested at your local Auto Parts store (NAPA or Advance Auto) If it is good, have the battery checked.
Usually it means that the alternator isn't charging the battery. Batteries store electricity and the alternator uses energy from the engine to produce electrical energy for all of the devices in the vehicle and to recharge the battery. If the alternator isn't working the battery will eventually loose it's charge and you will not be able to start the vehicle.
only if the engine is running and the alternator is in perfect working condition!