Why does the alternator go off when the engine is not started?
The alternator or battery light comes on with the key in “on” but the engine not started, then goes out immediately after the engine starts, goes off no more than 5 seconds after the engine starts. Bad battery, bad alternator, or drive belt are the most likely culprits. Many auto parts stores will test your charging system for free.
When does the alternator start charging the battery?
Alternator doesn’t start charging battery until engine is revved a couple times. Wiring problem? Excuse my ignorance. I know very little about cars but am trying to learn more. 2009 Hyundai Accent w/~90k miles The other day my car failed, showing all the signs of a bad alternator (battery light on, lights dimming/flickering, etc.).
How can I tell if my alternator is having an issue?
Your symptoms definitely shows issue with the Alternator or the battery. You can follow the below steps to make sure the Alternator is working fine. Ask someone to give the car some gas. On giving gas the voltage should read between 14.2 and 14.6 volts if its anything below 14 volts then your alternator might be having issue.
Can a car battery be drained by an alternator?
While you might initially think that any problems with electrical things like lights or radio not working are directly related to the battery, the alternator is actually where most of the power in your vehicle comes from. Consider that if you were to leave the lights of your car on overnight by the next day your battery might be drained completely.
Why does my car not start with a new battery and alternator?
With a new starter, battery, and alternator (assuming you have not drained the battery attempting to start it), the starter should attempt to crank over the engine. If the starter does not make any noise when the key it turned to crank over the engine, you have an issue with the fuses, or the circuit.
Why is my alternator going over 14.8 volts?
If its going over 14.8 volts then your new alternator might be overcharging the battery. On turning key if starter clicks but does not turn then solenoid might have burned out. There can also be wiring issues or earthing issue or parasitic battery drain.
What does a car battery and alternator do?
What the Battery & Alternator Do. An auto battery supplies a big electric charge that travels through the starting system and turns some gears to start the car. Once the car is running, the alternator sends current back to recharge the battery as you drive.
Your symptoms definitely shows issue with the Alternator or the battery. You can follow the below steps to make sure the Alternator is working fine. Ask someone to give the car some gas. On giving gas the voltage should read between 14.2 and 14.6 volts if its anything below 14 volts then your alternator might be having issue.