Why does my battery light come on when I start my car?
If your car battery light comes on when you start the car, you’re in the clear! A loose or corroded battery cable. A problem with the alternator or voltage regulator. Damaged cells or plates inside the battery.
Can a bad fuse cause the battery light to come on?
Broken Fuse for charging system When this safety fuse breaks, the electricity supply that flows from the battery to the alternator and vice versa (from the alternator to the battery) will also stop. Termination of electric current from the alternator to the battery will cause the car battery lights on.
When I accelerate my battery light goes off?
Your observation that the light goes off when accelerating indicates that the charging kicks- in at higher RPM’s, that means the alternator is working or cuasi-working, the problem can be traced to several issues, you need an electric car shop to identify the problem, it can even be the battery just installed.
What problems can a bad voltage regulator cause?
If you have a bad regulator, it may cause many components such as the fuel pump, ignition system, or other parts which require a minimum amount of voltage to not function correctly. You may experience the engine sputtering, a rough idle, or simply a lack of acceleration when you need it.
Will a bad voltage regulator drain your battery?
There are many reasons your car’s battery might be dead, and one of them happens to be a broken voltage regulator. This is because when this part burns out, the battery will no longer charge, meaning it will eventually die.
How do you bypass a regulator?
You can bypassed the regulator quite easily by connecting the AC in and AC out on the regulator. By doing so your fan will always at be maximum speed. If your regulator is faulty and you can’t find an equivalent, a simple flexidimmer (from Amazon.com or any online shopping…etc)can do the job.
Can you run an alternator without a voltage regulator?
When I come to your question first of all a regulator does not add value to the rating of an alternator rather it controls the output voltage of the alternator to be stable. this means the output will not vary if so the electrical system that the alternator is supplying for will be damaged or burned down.
Can you drive with alternator unplugged?
Without the alternator to charge it, the engine will be drawing all its power from the battery. You should be fine for around-the-block, no problem.
How many volts does an alternator produce without a voltage regulator?
Without a voltage regulator, an alternator may put out up to 250 volts. This is enough to destroy the car’s battery and electrical system.
What happens if you unplug the alternator?
If your alternator is malfunctioning by over-charging your battery, disconnecting it may allow the alternator to provide an even higher voltage to the car electronics, and potentially damage those sensitive components.
Can you disconnect battery to check alternator?
If you’re tempted to test an alternator by disconnecting the negative battery cable, don’t do it. A good alternator may indeed keep the engine running without the negative cable, but this was never a good test. In the pre-computer days, you could pull it off without damaging anything.
Can alternator work without battery?
At its basic level an alternator does not need a battery to operate. If a car is running and the battery somehow fails or the battery was discharged and the car was jump started from another car the alternator will function.