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Can an alternator stop a car from running even with a good battery?
Wiki User
∙ 13y ago
yea to test jump start the car and turn on all electrical stuff light's eta and if the car dies the alternator is dead if car will not start turn then key and listen for a clicking if no clicking nose the starter motor is dead
Wiki User
∙ 13y ago
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Is there a way to determine whether it is your battery or alternator that needs to be fixed in a 2001 Bonneville?
If you can get your vehicle started you can then un hook the battery while it is running and if your vehicle stays running then your alternator is good. If it stalls and dies as soon as you unhook the battery then the alternator is not good.If you can get your vehicle started you can then un hook the battery while it is running and if your vehicle stays running then your alternator is good. If it stalls and dies as soon as you unhook the battery then the alternator is not good.
Will your alternator recharge your battery if you let it sit for a while?
If the engine is running and the alternator is good. If the engine is not running, no.
How do you diagnose bad alternator?
Start the truck then disconnect the battery if it's still running the alternator is good
Your alternator and battery both tested good but the battery is not being charged?
Most likely cable running from stud on top of alternator to battery terminal is corroded or broken.
Will a car keep running if the battery is removed?
Usually yes if alternator is good not a good idea alternator can burn out all your components without the battery to keep the voltage down
What is the effect of weak battery to the alternator?
The alternator doesn't care. It provides power no matter if the battery is good, weak, or not even there.
Does running the car engine recharge a drained battery?
No, you must have a charged battery for the alternator to work.Here's an explanation of how the charging system works:http://www.ricksfreeautorepairadvice.com/repair-topics/alternator-generator/testing-an-alternator-without-blowing-it-sky-high
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
If you unhook the battery in your 1994 acura legend should it stay running?
Why do you want to unhook your battery??? If the alternator is good the car will continue to run, if it dies then you have a bad alternator this is why you would want to unhook the battery cable to check and see if you have a bad alternator
How do you know whether its your battery or your alternator?
Start the engine and using a digital volt meter check the voltage at the battery with the engine running. If the alternator is good you will read from 13.5 to 15.5 volts DC.
If you disconnect your battery will your 92 Mercury Sable stay running?
If your alternator is good it should stay running until your engine dies from no fuel.
What will happend if you disconnect the battery terminal from battery while engine is running?
Nothing, if the alternator is good the engine should keep running.On the other hand if the alternator is bad the engine will die/stall. In a modern car with sophisticated controllers (ECM, BCM, TCM, etc.), NEVER DISCONNECT the battery with engine running. These controllers have semiconductor chips that are sensitive to voltage spikes and transients which become pronounced when battery is disconnected.. Even the power diodes in the alternator can be stressed and eventually damaged.
