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Why does battery go dead if alternator and battery are good on a 2003 ford expedition?
Wiki User
∙ 13y ago
Something is pulling power from the battery when the car is sitting idle. Check under hood, trunk, glove box lights, etc. Also can be a stuck relay. A battery may also appear good and have a dead cell. Have it tested.
Wiki User
∙ 13y ago
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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.
Why would your 2004 Trailblazer all of a sudden go dead when you are driving?
If its totally dead (no radio, no starter) I would first look at your alternator/battery. This happened to my 2003 Trailblazer, and we had to replace the serpentine belt and the alternator. Battery light came on while driving and within ten minutes, the car was dead.
Will battery recharge after bad alernator is replaced?
An alternator is designed to keep a fully charged battery at peak level. It is not designed to charge a dead battery. Installing a new alternator on a car with a dead battery can in some cases ruin the new alternator. Fully charge the dead battery before starting the engine.
Why does the battery not charge?
Corroded or loose battery connections, loose alternator drive belt, defective alternator, or dead cell in the battery.
Why is your battery not charging when you drive?
dead battery dead alternator dead voltage regulator each needs to be tested.
Why does battery go dead when hooked up but alternator is good in geo metro?
check your battery ground and your alternator ground
Why does Expedition not start and all electric is dead?
Battery could be dead , or a poor cable connection to the battery
If you constantly run your car with a dead battery will this hurt your alternator?
Yes, alternators are designed to maintain the battery, or recharge a battery that has been slightly discharged from starting the car. When the alternator is used to recharge a dead battery, it causes the alternator work harder and longer than it is designed for, causing it to overheat, thus causing damage to the alternator. A battery charger should be used instead. They are designed for charging dead batteries. After the battery is charged, let the alternator maintain the charge.
Can you still put your 2003 expedition in gear if the battery is dead?
I don't think so... I think the transmission need electric power to engage.
2003 Ford Expedition wont start?
In the case of my 2003 Expedition, it turned out to be a bad starter motor after 55K miles.
Why is the battery in your 2003 f150 XL not charging?
Dead cell in the battery or the alternator has failed. Drive your Ford to your favorite auto parts store where they will check the charging system free of charge.
