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my battery keeps dying... help please.


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I noticed a couple days ago when I did not drive my car for 24 plus hours that something is ...



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Old 09-29-2008, 12:59 AM   #1 (permalink)
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Default my battery keeps dying... help please.

I noticed a couple days ago when I did not drive my car for 24 plus hours that something is draining my battery or something else is wrong. battery has been 100% dead twice after letting it sit for a while, it also died once at PPP when we were installing the AF gauge. my car is equipped with a Methanol injection kit, Innovate AF gauge (maybe the o2 sensor heater is staying on), boost controller, turbo timer (turbo oil pump runs for 30 seconds after shut off but I know it turns off and does not keep running), boost a pump. those are all the things that draw power that are new to my car.
my other thought was the alternator but would the car start consistently as long as I drive it then or would the battery get drained no matter how much I drive it?
thanks in advance for any input!
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Old 09-29-2008, 09:33 AM   #2 (permalink)
 
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how old is the battery might be time for a new 1
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Old 09-29-2008, 09:34 AM   #3 (permalink)
 
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you ever get the TSB for the subwoofer heatbeat? my car sat for 5 months, needed new alternator and battery.
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Old 09-29-2008, 09:37 AM   #4 (permalink)
 
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after you turn off your car....just sit there and be quiet...if you hear what sounds like heart beat....you need the subwoofer TSB....

Basically the sub keeps drawing from your battery when your car is off which = dead car....
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Old 09-29-2008, 10:09 AM   #5 (permalink)
 
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HID's and their ballasts are HUGE draws.
Check those if you have them.
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Old 09-29-2008, 01:21 PM   #6 (permalink)
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I wll check the Subwoofer, I don't think I've ever heard it before but maybe..

My car did sit for a few months when getting mods installed.


I just have OEM HID's, don't think those would cause problems but who knows.
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Last edited by IrishChamp; 09-29-2008 at 01:23 PM.
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Old 09-29-2008, 03:15 PM   #7 (permalink)
 
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Originally Posted by IrishChamp View Post
I wll check the Subwoofer, I don't think I've ever heard it before but maybe..

My car did sit for a few months when getting mods installed.


I just have OEM HID's, don't think those would cause problems but who knows.
it sounds dumb but when you turn off you car have someone stick their head in your trunk and see if they can hear it lol
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Old 09-29-2008, 03:30 PM   #8 (permalink)
 
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Hey my subwoofer does that where can I find TSB's for our Chargers??
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Old 09-29-2008, 04:49 PM   #9 (permalink)
 
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Originally Posted by NYCSRTATE View Post
Hey my subwoofer does that where can I find TSB's for our Chargers??
Look for the TSB for the Sunroof Control Module. The subwoofer heartbeat is just a symptom of the Sunroof Control Module problem. It just needs to be re-flashed. Also, from what I was told, you can have this problem regardless of whether you have a sunroof or a subwoofer (as I think all LX's have the module). I have read that it has taken a couple tries to get the flash to take for some people.
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Old 09-29-2008, 04:56 PM   #10 (permalink)
 
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Originally Posted by NYCSRTATE View Post
Hey my subwoofer does that where can I find TSB's for our Chargers??
I dont think that it applies to you big T but theres a TSB section here....i posted up a thread full of LX TSB's but i believe its only for 05-07's....couldnt hurt to try though
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