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If your battery is good but your alternator is bad would you still be able to start your car?
Wiki User
∙ 14y ago
Unlike a dynamo, which is self-energising, an alternator requires some current from a battery to energise its coils. If the battery is good, the starter motor will work, and there will be power to generate ignition sparks; but if the alternator is faulty, it may not be able to recharge the battery sufficiently, and the car would eventually stop.
If you know this situation applies, try to bump-start the car (say, by rolling downhill), as the starter motor makes a huge draw from the battery. That way, the battery will stay fresh and will be able to provide sparks for longer.
Wiki User
∙ 14y ago
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Your speakers in your car short out when you accelerate Could that Be your alternator or battery?
the batteries only serve to start the car and the alternator. I'm not sure if it would be your alternator but it's not the battery.
Why would your car not start if you just replaced the battery and alternator?
Check the battery cables or starter.
Why would the alternator in your 1994 Mitsubishi galant not be charging the battery when it is not defective?
usualy if the alternator is not defective then its the battery. you should start by cleaning the battery post. then you could check the terminal wire that runs from the battery post to the alternator. if thats not it you should check the ground on the alternator.
What would cause battery light to stay on in a 1998 ford taurus. I have had the alternator checked and was told it was good.I have replaced the battery and still battery light stays on?
Battery light usually means alternator not charging. Most common solutions would be be a bad alternator, bad connection, or loose alternator belt. If the battery and alt test ok than check the connections to the alternator and battery. The alternator should have 2 connections.
Why does check engine light come on and battery gauge go down in 1993 town and country minivan but problem goes away after a jump start?
The battery is basicly used just to start your vehicle, the alternator is what generates your power once the vehicle is running. Which indicates you need a new battery, not an alternator. That is why you problem goes away after a jump start(boost). If it was the alternator the problem would not go away and your vehicle would have no lights and stall with no start. Either your battery is bad or the alternator is not charging.
MY car battery light is still on after the alternator and the battery has been changed. The battery cables are clean and well attached. Now what?
Battery light usually means alternator not charging. Most common solutions would be be a bad alternator, bad connection, or loose alternator belt. A replacement alternator can be bad. If it is ok than most likely a poor connection to the alternator.
On a 97 cavalier after replacing the alternator and battery the battery light is still on and though it starts and runs fine what is causing the battery light to come on again after start?
MAYBE IT COULD BE A BAD SENSOR. IF IT IS RUNNING GOOD I WOULD JUST IGNORE IT.
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.
Why would the battery light come on when I start a 2002 Chevy Impala?
it indicates that the alternator is not functioning sufficiently to keep the battery charged.
If you have a good alternator in your car why would it still lose power?
Bad battery, Parasitic drain.
Why doesn't 2001 kia sportage keep battery charged?
I would start by checking the alternator yourself or take it and have it checked. If you had'nt had any battery issuses like hooking battery up wrong It is prob. your alternator.
Why is your 1981 ford F150 starting without an alternator?
You don't need an alternator to start your engine only to recharge the battery. You could start any vehicle without an alternator but that doesn't mean it will run for long. Newer vehicles would just run till the battery was drained.
