6G Celicas Forums

I couldnt find a better place to put this so here it is. So 3 weeks ago I jump in my car to go to work and the battery is dead, didnt leave anythign on, nothing. Odd I thought, but I got it jumped, drove to work, and it started up strong since. But yesterday the same thign happened. Got in to go to work, and nothing, not even a hint of trying to turn over. So I got a jump drove to work. Except when I tried to leave work I had nothing again, so I asked one of the guys to jump me. We let those cables stay on for like 10 minutes, and the car never once tried to turn over. Checked the voltage on my batt. 12.4 with car off and no cables. It was getting charged at 13.7 from my buddies car. We were stumped. I wanted to think it was my clutch sensor, but then why would jumping it work in the past. and it cant be my battery because it shoudl start with a jump. Last thing I pulled the cables off, turned on the lights and all the interior stuff, and tried to turn her over to see what would shut off. My clock, gauges and stereo went way dim or off, no sound of hte engine cranking, but the lights stayed bright the entire time! I hope someone can give me a hand with this. Thanks for any help in advance.

Anton

maybe it's the alternator?

I would bet that you have a bad alternator and that driving with it has ruined the battery. The alternator and battery have a symbiotic relationship and if you don't repair one when it goes down, the other will quickly follow. The thing to do is buy a new battery and then immediately take your car to autozone or someplace like that that will test your alternator for free. If its bad, replace it too.

P.S. 12.4 volts is low (despite the fact that they are called 12 volt batteries) - you should be in the 13.5-14 range.

I was thinking the alternator before, but if it was the alternator shouldnt jumping allow the car to start?

Not if the failure to keep a charge has fried the battery.

Ive never heard of that, Ill take your word for it though, any other comments from anyone?

Anton

Ok going to try and pop the clutch and get it started, if the alternator is good it should read higher than normal voltage, say around 13.5V if it doesnt that means I need a new alternator.

Anton

Just a thought here but it could be your ignition coil. Check that out and hit me back

Just a thought here but it could be your ignition coil. Check that out and hit me back

I'd check the battery terminals as well. They can get dirty and screw things up.

its nothing more than just a dead battery. replace it.