My Car Won’t Start Even With A New Battery
Posted in Car Batteries | Asked on Jun 1, 2010
92 Buick Park Avenue
My lights would come on in the middle of the night and drain my battery, so I replaced the daytime running light module. Car started fine for a week then the battery kept dying over night. I have a battery charger so I could still get around, then my battery began to die every time I turned off the ignition. I took my battery to get tested and it had a bad cell so I got a new one.
Today with my 3 week old battery the car had died for the second time. While connecting my battery charger (best Christmas gift ever) I noticed that the box thing that my spark plugs attach too is leaking green stuff. Could this be causing my car not to start?
Other info that might be important:
*My battery has been draining completely when it dies but a quick boost (30 seconds) from another car will fire it up, or 10 minutes on the charger.
*It’s NOT my alternator, I’ve had it tested at auto zone, and at home with both a voltage tester and by disconnecting my battery while the car is running and it keeps running.
*I’ve disconnected the light in my trunk, and under the hood.
Please help. It’s a great car when it starts.
There are 5 Answers for "My Car Won’t Start Even With A New Battery"
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im sooooooooooo srry for u
the box your spark plugs connect to should not be leaking green stuff,,LOL
It is most likely your alternator- the device that charges your battery when your car is running. So if your alternator isn’t working your battery won’t charge when you are driving, so even if you charged it previously it will run out of power again. It will most likely need to be replaced, but when you take it to the mechanic don’t mention that you think you know what it is- it is a rather expensive part, and if you mention it they will just replace it willy-nilly and charge you an arm and a leg. It could be something else cheaper, but I doubt it.
first off that green stuff on the coil pack is nothing more than corrosion, bad by itself but i believe that the battery is close to the coil pack on that car. it is possible that the charging system is the problem. if the charge rate is higher than needed, the electrolyte will boil out and collect on something close to the battery.your basic tests on the charging system do not eliminate it. if your charging voltage was above14.5 volts, i would get it checked out too.
You got a short someplace. Autozone guys should have noticed that. Anything that uses power-from the ignition switch on. Or something is still runnng that should be off. Such as rear window defroster wire switch. So that has to be found out. Don’t believe me. Next time you park it for the evening, disconnect the negative cable on the battery. In the morning, reconnect the cable. If car starts up fine then the energy sucking short is somewhere in there.
Any chance that the hood could possibly touch the battery when you close it? The hood is metal and if it makes contact with the positive post, it is a complete connection(short).
Pulling off the battery cables while the car is running is not a good test for an alternator. It will screw up the regulator inside of it.
This was something that was done for generator checks. The alternator needs the battery in many cases just to charge…..and also to keep the alternator from going into supercharger mode (which burns out the alternator) The battery is a “buffer” like device in this case.
You could have also been that lucky as to “win a second bad battery” as your prize..