Since you replaced the battery and alternator, you must have had a problem before. Did you run a voltmeter on the battery while the engine is running? Should have around 14 volts. If you are getting around 14 volts, you can assume that the lite might be faulty. If you are getting say, 12 to 13 volts, then the alternator might be faulty, yes even sometimes rebuilt ones. Check all the wires to make sure there is good contact, also if you still have the problem, then you might have a broken wire ( somewhere ). Good luck
Check the volts right from the battery, might be a faulty alt.
take off the ground from the battery then put it back
Disconnect battery for 15 - 20 mintues
its the alternator if the car is running with a battery light on. but check fuses first
Yes, they are identical
yes if one of the wires was getting an earth from the alternator cover or rubbing off the engine the battery light is really an alternator light warning you that the alternator is not charging the battery
It wants you to check the alternator. Just run a volt meter on the battery while the engine is running. You should have about 14.5 volts. If less than 12.5 or around that, time to change the alt.
Usually when the battery light comes on its the Alternator, or a bad wire from Alternator to battery, but id check Alternator first.
There is no problem...the problem was the alternator. You have fixed the problem.
That is typically caused by a faulty alternator. Have the alternator tested; the light is indicating that the alternator is not providing a charge to the battery.
Wire from computer is fried, alternator/diode/voltage reg. is fried, battery is no good, cable from alt. to battery fried(fusible link), Fuse, Or Computer is Toast. 2003- 2004 Ford Crown Vic has computer controlled alternator Check yellow/yellow white wire, enjoy, kinda sucks
Battery light usually means alternator not charging. Most common solutions would be be a bad alternator, bad connection, or loose alternator belt. If the battery and alt test ok than check the connections to the alternator and battery. The alternator should have 2 connections.