Why does my car battery light keep coming on?

Replaced alternator and battery. When you start car battery light comes on then goes off, comes on again five minutes later, goes off again. If you drive more than twenty or thirty minutes battery light comes on and stays on.

When does the battery warning light come on?

When you start car battery light comes on then goes off, comes on again five minutes later, goes off again. If you drive more than twenty or thirty minutes battery light comes on and stays on. After another few minutes all warnings lights flash and all gauges freeze, then power steering goes out and car dies completely.

Why does the battery warning light come on after replacing the alternator?

A relatively common “side-effect” of replacing a battery and/or alternator in a car is to have the voltage (battery) warning light come on. This is especially true in late-model vehicles with their more sophisticated internal diagnostic systems.

Is it normal for the battery light to come on then turn off?

Yes! It’s perfectly normal for your car’s battery light to come on then turn off after you start it. Thanks! What do I do if my car is saying it has a low battery? You may need to replace the battery or alternator.

What happens when you change the battery in a car?

If not charging properly, a new battery may keep you going for a while, but sooner or later will eventually crap out on you. If the voltage is good going to the battery, you should be ok. Good clean and tight connections are also very important, positive and negative are equally important. Again , dont know if this helps you .

What should I do if my Battery Light is not working?

Check the voltage from the positive terminal of the battery to the negative terminal on the battery (record this). Then check voltage from the positive terminal of the battery to where the negative terminal connects to the block. if this reading is lower your negative battery cable may be the problem.

Why does the battery light stay on when the alternator is disconnected?

With the Alternator connector disconnected check the resistance of the alternator at the connector blades. If the needle goes to infinity, there is an open circuit in the windings.

Can you test the battery light while the engine is running?

WARNING: The next test is the “old fashioned” way we shade-tree mechanics used to do this. It can be done with the engine running in most cases, but you must be extremely careful that you don’t get clothing or long hair anywhere near the pulleys. You do this at your own risk.

May 25, 2016. The battery light or charging warning light, available on the dashboard of your car, indicates malfunctioning or poor charging of the battery. This light illuminates whenever the charging system does not charge the battery with a voltage above approximately 13.5 volts.

What to do if your battery light comes on again?

Tip: Try starting your car in a safe location, if the battery light comes on again, do not drive it. Shut off the engine and open the hood to see whether the serpentine belt, alternator or battery have any problems that can be identified visually. Tip: Always turn off the engine before inspecting the battery or other components.

Why does the battery light come on after the alternator is replaced?

This would make the Battery Light come on. It is also possible that there is a problem with the fusible link or the alternator fuse for the charging system.

What might cause the battery light to stay on?

Poor Battery Condition. The first thing you should check is whether there is a problem with the battery.
you should move into the alternator.
Bad Wiring. The wiring that comes out of the battery could be damaged or frayed.
Bad Battery Cable.
Losing battery cable.
Too many Accessories.
Bad Ground Trap.

Why does your battery light keep coming on?

There are a few different reasons why your vehicle’s battery light came on. It could be a problem with your alternator, which recharges your battery while your engine is running. It could also be a wiring issue such as a damaged or disconnected wire affecting your battery.

Will a bad battery cause Ur check engine light to come on?

Most car problems emanate from a faulty/undercharged battery or a poor electrical connection. With a faulty battery, there’s bound be low voltage at the car’s computer which may cause the check engine light to come on. Nov 7 2019

How do you check the battery light?

To check the battery charge, press the battery status button and look at the color of the status light. Here’s what the lights mean: *If your battery has no charge, you can charge to 80% in about two hours and 100% in about four hours.

What causes a battery light to come on after an alternator is installed?

The most common is, again, a loose connection either with the control plug (aka “relay” plug-in), charging line connection, or the ground. The other is a blown fuse or defective connector or relay, which could have been broken or shorted when the alternator was installed or on the first start-up after its installation.

Is the battery light on but battery charging OK?

Going nuts – Battery light on but battery charging OK. The battery light is on but the voltmeter says 13.5 to 14.5 volts depending on the engine revs. When engine is off the volts drop to about 12.

This would make the Battery Light come on. It is also possible that there is a problem with the fusible link or the alternator fuse for the charging system.

Going nuts – Battery light on but battery charging OK. The battery light is on but the voltmeter says 13.5 to 14.5 volts depending on the engine revs. When engine is off the volts drop to about 12.

Why does my car battery light keep coming on?