Best Answer

I am having a similar problem with my 99 Regal LS. Sometimes my wife drives my car to work, a couple of times when she was ready to drive home the battery was completely dead! Needless to say she wasn't pleased! I had to come and remove the battery, take it to nearest auto parts store for a quick charge then reinstall the battery. At first I thought this might be caused by the door lights, However, It was odd I never had this problem when I drove the car. I will elaborate more on this point in a minute. I started doing some research and found some helpful info on another automotive forum message board. Key items I searched for on the other message board are "battery rundown protection" and "retained accessory power". I found someone with a 98 Pontiac that was having a dead battery problem. It turns out an amplfier in the stock stereo system was staying on causing a parasitic drain on the battery. This could be relevant to my situation because my wife listens to radio going to work and has a habit of not turning it off. She uses the auto cutoff feature that cuts it off when you open the car door. Let me know if any of this sounds relevant in your situation. It is always difficult to diagnose extremely intermittent problems.

User Avatar

Wiki User

โˆ™ 2011-09-13 16:05:39
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why might the battery on a 2000 Buick LeSabre go dead overnight a few times a year?
Write your answer...
Related questions

Do you have to reset something in the engine so your car will start again after replacing the alternator and battery in your '88 Buick LeSabre?

no. you might have to reset the clock and radio.

What makes my 98 buick lesabre dies while driving?

One of the main causes for a 1998 Buick LeSabre to die while driving is a problem with the computer. The computer might tell the fuel pump to shut off and stop sending fuel to the motor.

How do you unlock the radio after replacing battery in a 1997 Buick Lesabre?

I would call your local Buick dealership. Ask for the service department. Be straightforward and tell them that you need the radio code for a 97 Lesabre have the VIN # on hand and they should give you the code. Some dealerships will only release these over the phone to other dealers so you might want to tell a little white lie that you work for another dealership.

What does the Crank shaft sensor on the Buick LeSabre look like 1995?

Check or another such sight They might have a picture. They did for the same part for my 91 lesabre. (Which may very well be the exact same part)

1994 buick lesabre had light come on on panel that says Infl Rest what does this mean?

It stands for Inflatable Restraint sensor might be faulty

2000 Buick Park Avenue won't start?

you might need a good battery

What might be wrong with the blower in a 1995 Buick LeSabre if you've replaced it the condenser and compressor are fine and fuses are OK?

Does the blower run? Runs only on high?

How is serpentine belt ran on a 97 buick lesabre?

There might be a picture of this under the hood. Alot of GM's have this. It is possible that the engine mount will have to be removed for this depending on what engine you have .

Does 2000 Buick le Sabre take e85 ethanol?

A 2000 Lesabre is not designed for E85. While the car might operate on E85 the fuel system is not built for it.

What might cause a squealing engine noise on a 1997 Buick Lesabre?

Check the belts. The most common cause of squealing is a worn or loose belt on the front of the engine.

What is wrong with a 95 Buick Lesabre if the battery light is blinks and there is not enough power for the turn signal but the next day the battery can start the car and the alternator has been checke?

Will any light come on when it's messing up? If not, you might have a problem with the ignition lock cylinder (where the key goes) or the ignition switch (the electrical part inside the steering wheel). Good Luck!!

1990 Buick lesabre fuel problemschanged the fuel pump relay switch and fuse and still have no power to pump?

you might want to check and make sure the tank is ground

How do you connect jumper cables on 1995 Buick Regal battery?

I don't know the answer, but I wanted to comment for those that might not know, this is a side post battery (I assume... I have a '94 which is a side post)

Why won't my Buick Park Avenue start?

is the battery dead? you might need a new starter that should be around 200 dollars.

What could cause a 1994 Buick park avenue battery to drain overnight?

Most likely there is something that is draining it. In case it might be the battery itself, disconnect the battery terminals at night. When you reconnect in the morning and the battery is OK, then the problem is in the electrical system somewhere. If the battery is dead then the battery needs to be replaced. Finding the fault in the electrical system can be difficult. Check to make sure all lights go out when the car is turned off. Pulling fuses to see if any stops the drain could help isolate the problem too. Good luck

What causes a pop-like noise when accelerating on a 1992 Buick LeSabre?

Possibly worn CVC joint. Have the CVC joints inspected. It might be that your motor mounts are broked and the motor is lifting up and slaming back on the chasey

Where is the ignition module located in a 1986 buick lesabre and how do you replace it?

It's underneath the coils. This link might help.

How do you know when a car battery is bad?

When it will not hold a charge nor take a charge it is defective. Of course something might be on pulling power from the battery. Any light or stuck relay. Disconnect the negative battery cable, charge the battery with a battery charger and let it sit overnight. The next day if the battery is still charged it is ok and you have something pulling power from the battery. If it ran down the battery has a dead cell and is defective.

Your turn signal flashes erratically after you changed the bulb 2001 Buick Lesabre?

Check the flasher as it may be malfunctioning also check for another burnt out bulb or loose connection or your bulb holder might be dirty and not making a good connection.

What might be wrong with battery on 1990 beretta it wont hold a charge?

If it will not hold a charge it has a dead cell and must be replaced. If it is just running down overnight disconnect the ground cable in the evening to make sure something is not on pulling power from the battery.

Why am i having problems with my heat i have 95 buick lesabre We changed the water pump flushed the system up to the heater core I had heat befor we flushed?

it might be your a/c heater blend door actuator is bad and not closing when the heat is or you need to bleed your system

Are there any common known components that typically go bad on the 1998 Oldsmobile LSS in which would cause a drain on the battery overnight?

If you're sure the battery is ok (sometimes they can short out and draw down the charge) you might want to test the alternator to see if it has bad diodes.

What is wrong with your 1992 buick lesabre it wont turn over and you put a new battery on it do you think the alternator is dead?

If you put in a new battery and the engine would't turn over, I don't think a faulty alternator would prevent the engine from turning. The alternator is the charging unit for the battery - if it's "dead" the battery won't get charged. You might want to look for a loose or broken wire in the starting circuit (starter, solenoid, relay, etc), even a bad ground wire will keep the engine from turning. You might also check for a burnt fuse or burnt fusible link. the theft deterent module tdm stops working after ten years so you have to click on the guy who will tell you all about a bypass you can get because they stopped making tdm in 2009.

How do you replace the alternator on a 1991 Buick Century?

Remove the serpentine belt take out the bolts that hold the alternator to the engine disconnect the wires from the alternator Yes, but first step: remove the negative battery cable from the battery. You might get some fireworks otherwise.

How does it help if you have a rechargeable battery?

it might break your battery

Study guides

Create a Study Guide