answersLogoWhite

Top Answer
User Avatar
Wiki User
Answered 2007-01-06 02:09:08

typically when you replace your alternator you either replace your battery or completely remove it from the vehicle and charge it so that it is fully charged. The battery loses power when the alternator is too weak to recharge it. You might not have enough voltage going through your engine. try this. answer if it is only coming on at 3,000 rpms, I would suggest you look at your serpentine belt and make suer it is not slipping on the alternator pulley. Your idler pulley spring may be weak and is not keeping the belt tight on the alternator. If you bought the alternator from Pep Boys or AutoZOne I would suggest taking it back and having them test it. I haeve already purchased parts from them, realizing they are rebuilt and not new and have found some defective. I replaced a starter 3 times and had to go to another store to find a good one when I asked Autozone to test them before I took it out of the store. They had a whole batch of bad starters..........just something to think about. If your alternator is brand new, not rebuilt, then one of the diodes inside may be going bad.

001
๐Ÿ™
0
๐Ÿคจ
0
๐Ÿ˜ฎ
0
๐Ÿ˜‚
0
User Avatar

Your Answer

Still Have Questions?

Related Questions

Where is the alternator fuse on a 1997 expedition?

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?


When replacing an alternator you should first disconnect?

the battery


1997 cavalier will not start after alternator change?

did you unhook the battery before replacing the alternator


Why is the Battery light on after replacing alternator on Lincoln Navigator?

my battery is still on after changing battery and altnator


Why does the battery light stay on after replacing the alternator 2009 Chevy Malibu?

You might have a bad battery, a poor connection between the battery and alternator, or a bad ground from the battery.


When replacing new battery why does the battery continue to lose all its power?

The alternator is probably bad. That is what recharges your battery


What causes the battery light to stay on and whining noise near the alternator?

Alternator is defective and needs replacing.


Why does Nissan x trail battery light stop on?

Its the alternator, it is not charging the battery. Happened to me recently.


Why did the battery light on the 2001 ford expedition come on?

Check battery connections, check alternator out put. Exc.


Why will the battery not charge in your 1986 grand marquis with a new alternator?

Battery may have a dead cell and need replacing.


What would make my battery go dead after replacing it and the alternator?

The vehicle should ave a voltage regulator. If the battery and alternator are good then the regulator is most likely bad.


How do you tell if the alternator needs replacing?

With the car or truck running disconnect only the positive side of the battery ... if it stays running that means the alternator is good if it dies then it needs replacing


Why will 1999 Volkswagen Beetle not start after replacing battery?

You need to replaced the starter or the alternator.


How do you make the battery light to go out after replacing the battery?

If the light is still on then the problem was not the battery but was instead the alternator which is more than likely defective.


Why alternator charging low and battery dead after a while running?

If the alternator is not producing 13.5 to 15.5 volts it is defective and needs replacing.


What would cause the battery light to stay on after replacing with a new battery in a 2000 Nissan altima?

alternator or bad wires


Why would the battery light of a 1998 Ford Escort still flicker on and off after replacing the battery?

Clean both battery cables and check the connections on the alternator. If it continues, go to auto zone and have the alternator checked.


When a battery requires water freqently the battery is probably?

It may need replacing or it can be the alternator is overcharging the battery. Have the charging system checked out. The alternator should output from 13.5 to 15.5 volts with the engine running at idle.


Replacing Alternator on 2000 S10 truck rebuilt alternator?

Start replacing the 2000 s10 alternator by disconnecting the battery. Remove the air inlet hose, and the serpentine belt. Take off the bracket over the alternator if it has one. Unbolt the alternator and disconnect the wires. Reverse the procedure to install the new alternator.


1997 ford expedition battery light comes on and goes off when accelerated?

more than the alternator diode is bad have the alternator checked


Why won't a 1998 Nissan Pathfiner not start after replacing the battery?

It could be the alternator or an electrical issue


1987 Chevy blazer wont turn over after replacing starter?

did you check your battery and alternator?


1994 Nissan Altima battery wont stay charged?

Maybe your alternator needs replacing.


Battery light comes on and goes off while driving?

You possibly have a loose alternator belt or the alternator is weak. Check the voltage at the battery with the engine running. It should be 13.5 ? 16 volts. Any less and the alternator is weak and needs replacing. Also make sure the connections at the battery are clean and tight.


Why does myCar battery starts for about 3 days then goes dead?

Alternator is weak and needs replacing. Drive belt on alternator can also be slipping due to being loose. Check the alternator output at the battery with the engine running. It should read from 13.5-16 volts DC. Any less and it needs replacing.


Still have questions?