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What would make my battery go dead after replacing it and the alternator?
Wiki User
∙ 9y ago
The vehicle should ave a voltage regulator. If the battery and alternator are good then the regulator is most likely bad.
Wiki User
∙ 9y ago
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Why will the battery not charge in your 1986 grand marquis with a new alternator?
Battery may have a dead cell and need replacing.
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 could be wrong with a 1996 geo metro if the battery isn't taking charge and it's not the alternator?
The battery has a dead cell or short and needs replacing.
Why does the battery voltage gauge on my 1991 Ford F150 run low?
alternator probably needs replacing not charging battery or bat is dead and not taking charge
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.
Why is there no power after replacing the alternator on a mitsubishi montero sport 2002?
Is the battery dead? Check for 12v on the main alternator cable. If no power, check for burned out fusible links between alternator and battery. You may need a wiring diagram to check further.
Why does the battery on your Lexus 1998 es300 go dead?
You either have a battery that has a dead cell and needs replacing or something is on pulling power from the battery. Can be any light on the vehicle or a stuck relay. In rare instances a defective alternator can cause this.
Would a erg valve cause a dead battery?
no a egr valve would not make a dead battery. a bad alternator or maybe a bad connection post to battery would make it die ,
How do you tell if the battery is dead in the Chrysler sebring jxi or if it's the alternator?
if the battery is dead, there will be no ignition lights etc when u turn the key your headlights would be very dim if on at all. the alternator only works when engine is running, so if alternator is dead it will not charge the battery most auto stores will check both battery and alternator for free if you remove from car and take them to the store
Would a bad alternator cause a battery to go dead?
either the alternator is dischargeing the battery or it is going flat just because its not getting re charged
Will a dead alternator drain a battery?
Yes. If the alternator is dead and you drive the vehicle, all the power is coming from the battery and it will eventually drain completely. Also, if a diode is shorted inside the alternator, that can drain a battery.
Why does battery go dead?
Alternator is defective, dead cell in the battery, or something is on pulling power from the battery.
