Believe it or not, it may be as simple as a bad battery cable. Have the cables tested for power drain.
I have an '01 diesel Excursion. I go through batteries about 1x per year, but only replaced my alternator 1x in 6 years.
$550 at the dealership. The motor has to be raised up to gain enough clearance to get it out of the engine bay.
No, the battery may be defective and the alternator may be just fine or vice versa. Saying that if the alternator was overcharging the battery it may very well have destroyed a good battery. Just have the battery checked at any auto parts store.
batteries are stored energy, nothing should have happened. They say to disconnect the negative terminal for safety reasons.
If an automobile battery is in normal condition, there should be very little smell from it. The one smell that you should be aware of is the smell of rotten eggs, which indicates severe and dangerous problems with the battery. Once a battery begins to smell like rotten eggs, it cannot be saved, but must be immediately replaced. Please be aware that rotten-egg batteries can explode. Rotten-egg batteries are frequently much hotter than normal batteries would be, and the hot rotten-egg batteries are the most dangerous. The most common cause of rotten-egg batteries is an alternator which constantly overcharges, so the alternator should usually be replaced along with the battery.
The regulator is in the engine computer not the alternator.
I'm not exactly sure, but I have the same problem. My alternator was replaced and my radio does not work either, but the light comes on. Someone told me we have to go to the dealership and get the code put back in for the radio to work.
The computer only resets when the battery is removed. The alternator just charges the battery, so if the battery is left connected when the alternator is replaced, the computer should not reset.
They tend to freeze up after 200,000 miles or so. We had our '87's replaced a few years ago at the dealership for approximately $600.
I don't know if this will help, but my 1999 Dodge Durango would not charge the brand new battery I just put in either. The dealership suggested that the serpentine belt tensioner would not adjust any tighter and, recommended replacing the tensioner. I kept arguing that it was a bad battery... I was wrong. Replaced the tensioner and now it charges correctly. The dealership did not try to sell me a new alternator, or any parts I did not need.
It could be that the batteries are getting old and need to be replaced.
Inside the alternator, some are easily replaced and some are soldered in place.