Battery dying after sitting in 2001 GMC Jimmy

The car has a new battery, but if left sitting for three days, the battery goes dead.
Experienced mechanics share their insights in answering this question :
Hi there. There may be a parasitic draw on the battery. This can be checked by inserting a digital multimeter set to ohms inline with the negative battery cable. Generally, the current draw should not exceed 50 milliamps one hour after the vehicle has been turned off (the computer(s) need to go to sleep). If there is a draw on the battery, the offending circuit will need to be determined. One way to do this is by pulling fuses out one by one and looking for a drop in current draw. Of course, if there are any aftermarket accessories such as a stereo, lighting, etc., these items should be checked first. Add-ons are often responsible for parasitic draw. A trained professional, such as one from YourMechanic, will be able to diagnose the electrical problem with your Jimmy.

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

Your car battery can drain over time from stereo components (subwoofers), phone chargers, and anything you leave plugged into vehicle outlets that continue to draw power from the battery after the car is turned off. Other power drains include interior and below-vehicle LED lights. Loose or corroded connections.
Some of the most common reasons for a car battery to die repeatedly include loose or corroded battery connections, persistent electrical drains, charging problems, constantly demanding more power than the alternator can provide, and even extreme weather.
What may drain a car battery when it`s off are things such as interior lights, door lights, or even bad relays. While your engine runs, the alternator recharges the battery — which is why you typically don`t have to worry about the battery dying while you`re blasting the radio on your drive to work!
Parasitic Drain

A small amount of parasitic drain is normal and expected, since things like your clock and audio system need some power to avoid being reset every time you turn off the car. However, excessive parasitic drain can be a problem, leaving your battery empty by morning.

Contrary to its purpose, an alternator can drain a battery. It`s rare, but it`s possible. A draw on the battery only occurs if there`s a problem with either a component in the alternator itself or connections to it.
Battery usage worst offenders, Android edition. On an Android device, open Settings and then choose Battery > Battery usage.
Electrical devices or lights left running, a defective charging system or alternator, and extreme weather are some common reasons but maybe it`s just time to get a new battery.”
This can be a result of various factors including the number one cause which is leaving headlights, glove box lights, or cabin lights on overnight. Parasitic drain can also be caused by defective fuses, bad wiring, and poor installation of a new car battery.
Vehicle batteries on average last 3-5 years depending on a number of factors including driving habits and climate.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Battery dying after sitting in 2001 GMC Jimmy
ANSWER : Hi there. There may be a parasitic draw on the battery. This can be checked by inserting a digital multimeter set to ohms inline with the negative battery cable. Generally, the current draw should not exceed 50 milliamps one hour after the vehicle has been turned off (the computer(s) need to go to sleep). If there is a draw on the battery, the offending circuit will need to be determined. One way to do this is by pulling fuses out one by one and looking for a drop in current draw. Of course, if there are any aftermarket accessories such as a stereo, lighting, etc., these items should be checked first. Add-ons are often responsible for parasitic draw. A trained professional, such as one from YourMechanic, will be able to diagnose the electrical problem with your Jimmy.

Battery died, does it have anything to do with alarm going off and not stopping when it was recharged? 2003 GMC Yukon
ANSWER : Hi there – yes, a security/alarm system that continues to beep/honk/whatever, is draining your battery, just like a light that is left on. Most cars make the alarm system go off when the battery is replaced – or when the battery is run completely flat, then jumped off. To shut off the alarm when you jump it off or replace the battery, the following generally works: shut off the engine, close all doors, lock the vehicle from the driver door with the key, not the remote. Wait 1 minute. Open the driver door with the key (not the remote function), then start the engine with the key. For most vehicles, this will shut off the alarm system. The "battery" light flickering on and off could be a loose serpentine/accessory belt, a failing alternator, or a failing voltage regulator. Most auto parts stores will check the battery and alternator, although the alternator must be removed to test. The easy test is to see if the alternator is pushing system voltage to about 14.5 volts with the engine at a fast idle. If this is the case, then check for a loose belt, or something that is draining the battery when the car is shut off. This problem can be diagnosed by connecting an ammeter to the positive (red) battery cable, observe the current drain (likely less than 1 amp), then, one at a time, remove each fuse, check to see if the current drain has dropped to near 0, then reinsert the fuse. This process should identify the faulty circuit in most cases. The specific components on that circuit can then be checked for current drain problems. A professional mechanic, like YourMechanic, can come to your location, and perform this procedure for you, and replace/repair the failing component.

Battery dies if the car sat for over 20 hours
ANSWER : Batteries that drain overnight are common. Usually when this occurs, there is a parasitic drain on one of the car’s systems. When this occurs it drains the battery down over time. Batteries that are drained down repeatedly can cause them to fail. The most common causes of the battery drain are aftermarket accessories, radio, power windows and seat motors. If you can find the cause of the parasitic drain, a certified mobile technician from YourMechanic can come to your car’s location to diagnose your battery and determine what should be done.

Car battery dying quickly especially after longer driving
ANSWER : It sounds like the alternator is not charging the battery, when are you driving long distances. Running all the accessories and then shutting it off can cause the battery to be too weak to restart the car. If the alternator is intermittently not charging, then you may have other wiring issues or just an intermittent problem within the alternator. Have the charging system checked by a mechanic after driving it and not shutting it off, to see if the battery is being charged. You may also have a body control module issue with extended storage mode. The dealer can check this mode with the special scanner and checking the extended storage fuse is not installed.

can i put a 1997 gmc jimmy starter in a 1996 gmc jimmy and it work?
ANSWER : Hello there, thank you for asking about your 1996 GMC Jimmy. If the engine is the same size and both vehicles have an automatic transmission then they should be the same. If you see anything looks different when you go to install it, then you should not install it.

My battery light is on.
ANSWER : The problem is not the battery, but the charging system is not keeping the battery recharged. The alternator is the most common cause of this, though failing battery cables can also be a cause. I would recommend having the battery cables and alternator tested and checked by a mechanic, like one from YourMechanic, who will come to you and diagnose the problem for you. Do not try and drive it or it will leave you stranded from the battery going dead again. The cables to the battery from the alternator may be bad or the alternator is not charging. Only the testing and diagnosis will reveal the problem.

My car is behaving strangely after replacing the battery
ANSWER : Taking off the battery cable while the car is running is not a good test of the charging system. In fact, if you do that to a modern car it’s possible to do some serious damage to your alternator and the control modules in your car.. Taking off the battery cable to test the charging system is an old carryover method that dates back to the 1960’s when cars were equipped with DC generators and had no computer systems. That being said, you may never know if you have done any damage until later on down the road when some of the car’s modules start behaving strangely. I would normally expect to see a check engine light after that has been done. Since you didn’t report one, I wonder if the check engine light is working.
If you replaced the battery without having anything on the system to maintain power, there are a number of settings on the car that will have to be re-learned. Many of them will take care of themselves after a period of driving. But if you have persistent problems, you may have to use a few re-learn procedures: procedures that are a little too involved to talk about here. A code read should reveal if any of these settings are a problem.
The noise you have in your engine is a little worrying. Even though you used low-octane gasoline, your car should still run OK except for some spark knock under load. Most of the time you should notice no difference at all. There is a knock control system on your car that should be able to manage the spark knock and I think there might be a problem there. That and the difficulty starting are going to take some diagnostic work.
I expect there are a handful of trouble codes stacked up in the car’s memories. Some will be from the battery change, some will be from the cable being removed, and there may be some there from a previous fault. If you contact Your Mechanic, They can send a technician to your home or office to read the codes on your car and tell you what needs to be done to sort things out.

The battery keeps getting drained and dying out
ANSWER : Hello. It is possible that the your 2003 Lexus SC430’s computer is draining the battery during the time that it is not being driven. It is never a good idea to let a car sit for extended periods of time without the engine being run or driven.

If this problem only happens after the car has been sitting for a week or so, this may be caused by something else. Running the engine or driving the car may solve the problem. If it does not, it is also possible that there is a problem with the electric/charging system of your car. If the alternator is faulty and overcharging the battery, it may cause the battery to lose its charge faster than it should. Have a certified technician, like one from YourMechanic, come and complete an inspection of the electric system in order to properly diagnose your problem and make the necessary repair.