yes, you have to rebuild it, it is usually easier and much cheaper to just buy a new alternator.
Have alternator checked. Should be getting 13-14 volts running. If not that, have battery tested.
I have a 1995 Nissan Sentra and the same thing happened to me about two weeks ago. The problem was a wire going from the alternator had gone bad. So your problem can be the same thing or the alternator. I had just replaced my alternator so I knew it had to be something else.
It depends on the year of the vehicle. Newer (late 60s/early 70s on) had "internal regulator alternators", so the alternator needs to be replaced. Older cars have a regulator, usually mounted on a fender well, the fire wall, or the radiator support which canb be replaced independently of the alternator.
it may be ur alternator, once the car is running the alternator keeps ac current flowing and to necessary components if the alternator dies out/stops working the components that run the car which were powered by the alternator are now run off the battery which is dc (direct current) this will only last so long and when the battery is drained while driving you will lose the ability to accelerate and/or gage indications. This can be dangerous for obvious reasons and I suggest that you fix it as soon as u can rather than just jumping ur car and driving like this for prolonged periods of time.
Your alternator is probably rebuilt and not really new. I have had this problem several times and I have bought a new battery and alternator. The alternator keeps your battery charged and powers your electrical system, so even when driving you can lose all power in the car from the alternator draining your battery. Take the battery and alternator to an auto store and they will test both for free. Ask them about the difference in a rebuilt alternator and a brand new one. This is a very common problem.
A squeaky alternator is sometimes a sign that the fan belt or something associated with it is squeaking, not the alternator. (Possibly the belt or belt tensioner) So first I'd make sure it's actually the alternator squeaking before I proceeded. You could try some belt dressing on the belt and see if that helps or changes the squeak. If however it is the alternator, that's usually a sign the bearing's gone out and you will need to replace the alternator.
It might be so that the batters don't lose their vision of the ball after it is thrown by the pitcher.
usually if you leave it on too long the gas intake offsets the power converted to the motor because your battery is charged by your alternator and if no acceleration of the motor shafts takes place the alternator will lose tracttion on the belts and your battery will die so next time you go to the autoparts store have your alternator checked and take a look under the hood and check your belts they may be worn if not just dont leave it idle for two long and usually one of the three being fixed will fix your problem
The cost of a Nissan Stanza alternator go from $86.00 to $174.00 depending on where you order and if you order a new alternator or an after market. I got mine for $91.00 and there was not a core charge. However, there is usually a core charge that you pay up front then you are refunded when you send in your old alternator, so you're looking at an additional $40 to %76. Check out O'Reilly Auto Parts (Checkers).
The rotor of an alternator need a DC voltage applied to it to generate a magnetic field, this magnetic field will generate the AC power in the AC windings.The AVR(Automatic Voltage Regulator) is regulating this DC voltage so that the magnetic field is strong enough to maintain the output AC voltage. As soon as more current is drawn from the output, this output voltage will drop and a stronger magnetic field is needed to sustain the output voltage, so the AVR step up the exiting voltage to get a stronger magnetic field to compensate for the voltage loss in the AC windings.
Best to get a shop manual for this operation, if you have not replaced it before. Usually there is an "Idler Pulley" on many late model cars that is "spring loaded". You "Bias" this pulley (usually with a socket wrench) so that the serpentine belt has enough slack in it so you can remove it. Then you disconnect the Positive Battery cable, disconnect the "Field Wire" harness and Positive battery lead from the alternator, unbolt and remove the alternator. Reverse procedure to install new alternator. TommyTrouble
Any kind of magnet can be used in a generator or alternator to generate electricity, even an electromagnet (when these are used the generator or alternator is called self-excited). But for the highest efficiency it should be a kind of magnet with a very strong field (so that more lines of flux can cut the conductors in the generator's or alternator's coils).