Battary light would not go off

what you need to do is check the altenator for voltage it should be between 13 and 15 volts this is easily done with a standard volt meter check it at the altenator witch is located right on top of the engine on the back of the altenator there is a thick red wire that is where you want to put the positive and just put the black wire of the volt meter on the case of the altenator and check the reading it sounds like the altenator is bad there is also a fuse you should check your owners manual for location of the fuse also have your battary checked this should help ant questions just ask me

Short somewhere or altenator is bad.

With the engine running are you getting any voltage off the alternator? check with a multimeter. Check voltage at battery while running should be 13 volts or more.

First make sure the terminal and posts are clean and greased.

Then make sure the alternator belt is tight.

The type of battery makes no difference as long as it fits.

What matters is whether or not the alternator is putting out 13.5 volts or higher, in order to keep the battery at 12.5 volts. Put a voltmeter on the battery and rev the engine.

dous battary light come on while driving? if so .could be a faulty voltage regulater in the alternater, or the fan belt could need adjusting! also check your battary connections to see if there clean and tight.

Hi, You have a bad alternator and or regulator. Many places will test these for free. Drive to a parts store and ask to watch them test you're electrical system. You have a two part charging system. One is the Alternator the other is the regulator. These are many times made into to one intricate system or ONE PIECE that must be replaced both at the same time. Please have your system checked before and after replacing the alternator/regulator. If you have an Advance Auto near you - or Auto Zone - call first and ask if they will check your alternator for proper operation

voltage regulator will need to be replaced. Otherwise the solenoid may be faulty

HI, what your are experiencing is a Battery drain issue.

There are one or more devices that are not shutting down during the downtime of the vehicle. this will cause the battery to drain overnight. You will need to isolate this drain and fix it asap if possible.

Here is the procedure I use to isolate a battery drain. Remove negative battery cable from the battery. Using a 12-volt test light, hook one end to the negative battery post the other end to the negative battery cable you just disconnected. The test light will glow or "light" if there is a drain. If the "light or glow" is faint, that is probably normal draw for the clock or computer. If the "light or glow" is bright, then there is a large drain. That should be corrected. Now start removing and replacing the fuses one by one until the light goes out; that one will be the circuit with the drain. Remember to hold in the button in the door jam for the interior lights. Now about the "miss" in the engine. We would suggest doing a cylinder leak down test, also check for a "flat" cam. If the problem still exists, scan the PCM (computer) for trouble codes.

check the glove box and trunk..most time the are the route to all evil..lol.. you can see the lights because the box is closed and trunk is as well.. i hope this helps you..keith...

On an American designed charging system the truck should remain running, on Japanese cars it will die, but to anser your question yes you almost surely have a defective alternator. Make sure the battery is fully charged before the new Alt. is installed, if you don't the new Alt can be overheated and damaged.