No Battery Power in the Car?

Maintenance/Repairs
1

I’ve got a 1999 Subary Legacy Outback. Today when I went to start it, there was no power at all in the battery. The battery is only about 1 year old. I jump started the car, drove it for a while, made sure nothing was turned on that would drain the battery (which there wasn’t), turned it off. With in about 1-2 hrs from turning it off it would start fine. I waited several hours and tried it again and it is dead…no power. Any idea why this would happen? I had a bad “knock sensor” replaced and also the spark plugs about 12 days ago. I was starting fine until now. Could this have to do with the work done? I’m going to have the battery checked tomorrow if I can find a person to jump the darn thing and also someone open on Christmas Eve. Any help is much appreciated

2

I’ve got a 1999 Subary Legacy Outback. Today when I went to start it, there was no power at all in the battery. The battery is only about 1 year old. I jump started the car, drove it for a while, made sure nothing was turned on that would drain the battery (which there wasn’t), turned it off. With in about 1-2 hrs from turning it off it would start fine. I waited several hours and tried it again and it is dead…no power. Any idea why this would happen? I had a bad “knock sensor” replaced and also the spark plugs about 12 days ago. I was starting fine until now. Could this have to do with the work done? I’m going to have the battery checked tomorrow if I can find a person to jump the darn thing and also someone open on Christmas Eve. Any help is much appreciated

3

The first suspect is the battery itself. Although there may be a power drain (something pulling power from the battery while the engine is off), start with having the battery tested. I don’t think that the work you had done has anything to do with this problem.

4

Check for battery draws such as glove box light or under-hood light staying on after the door/hood is closed. Test these by pulling the fuse.

5

And of course check the battery cables, both ends need to be clean and tight.

6

charge the battery pull the wire that feeds the electric to charge the battery . try light in the morning to see how bright they are put power wire back on and turn the key of it starts you got a short inside the alternator. done. if battery is dead you got a problem with something else. look a light that stays on or short some place