If it is not keeping the battery charged then it is defective. Start the engine and connect a volt meter set on 20 Volts DC to the battery posts. Red probe to positive and black to negative. You should get a reading of from 13.5 to 16 volts. Any less or more and the alternator is defective.
alternator charging too high need replacing per dealer
I have a 1997 ford expedition that the alternator is not charging the battery. Had the alternator tested and it was good the battery is new. Cant find the fuse for the alternator does anyone know where it is?
see this link How_can_you_tell_if_it's_your_battery_or_alternator_that's_bad
The first step is to know the problem.
You can have it tested at a auto pars store like autoZone. Another symptom is that if it has power issues, its the alternator I have the 03 LS and it needs a new alternator.
It's inside the alternator, most people just replace the alternator if it isn't charging but you can take the alternator apart if you know how and put in a new voltage regulator for about $15.
i dont know if you have changed this alternator or not but if you have and the new one quit call me i know the problem mine went out 5 times before i figured it out. 252-814-9267
A new battery or one that tested good is in the vehicle and the car is still losing power. the alternator is what charges the battery while the vehicle is operating.
The alternator does not have a resistor.The alternator does not have a resistor.
It may be a bad new alternator or it was not connected properly. Have the alternator tested to see if it is actually good.
Yes.
Inside the alternator. When you get a new alternator, you get a new regulator.