New alternator new battery battery light stays on

If a good battery is losing charge overnight then it is probably being drained by something left on! The usual areas to look at would be the boot light or glovebox light, check these or anything that might be staying on when the ignition is turned off!

Most likely because your alternator is not charging , the circuit of a vehicle is designed to show the battery light on if this fault occurs, your local garage can test this quite easily. you will possibly find the car will fail to start soon as the battery is exhausted.

was the alternator bench tested? or tested on the car? if the alternator tests good off the car and the wiring has been tested, the ground may be loose or disconnected.

seen many of these where a dash / interior light is staying on ... if you have a garage / make it dark. then check look to find light in small tight area.........

Have you checked alternator output ? It may not be making it to the battery.

Hi it is possible that you Alternator is faulty,if you have access to a VoltMeter ,check the battery voltage in the morning before you try to start it you should have around 12.7 volts for a charged battery if not fully charge your battery again and check the voltage with your car running you should have around 14 volts with the engine reving at 1500 revs.ifyou get around 12 volts then your lights are taking more power from the battery than the Alternator can replace.You could also get your local garage to Drop Test your battery to see if any of the Cells are faulty

I think your car has adjusting screws around the light housing. First find a level garage floor or somewhere with a level floor. If you can, stop the car about ten feet from the wall. Cut strips of black electrical tape. Put one piece in a horizontal position across the center of the light. It should be parralell to the floor. Take another piece of tape and locate it in the center or the light so it is perpendicular to the floor. Repeat on other lens. Turn out all room lights and turn on the head lights. Using the adjusting screws around the headlight (usually 3) raise or lower as needed. When I worked in a garage in the sixties the lens on car were close to the same and we had a level with a suction cup that could be attached to the lens face. The lights today vary a lot from car to car so the tape is a pretty good alternative. That or take the car to a garage. Good luck. I just did my 2002 Grand Prix because I replaced the cloudy lens housings and it took me three times to get it right but when I work for my self I'm working for free.

Something is staying on after the car is turned off. Try putting in a dark garage and check interior lights,glove box, under hood light, etc. Also keep in mind even new parts can be defective.

For the Brake light to stay on and the fluid is up...sounds like your sensor is playing dead......

For the battery to die after only (4) hours..you have a very big drain on the battery itself.....without the vehicle right here to look at would be very hard to even guess...electrical problems are a hands on chore...

I'd take it to your garage/mechainc

Find a friend with a heated garage that you can use first off, then locate the short that may be causing all this. Unless you have a bad battery? If its more than 3 years old, replace it. Batterys are cheap. WALMART has em under 89 bucks for most vehicles.