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06 GT battery draw and battery dies in 2 days with car off

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Old 11-26-2006, 05:40 AM   #1
mygt500
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Default 06 GT battery draw and battery dies in 2 days with car off

Hello,
This is my first post to mustangforums.com! I have a 06 GT with Eleanor bodykit and all GT500 badges and emblems. I have just recently noticed for the past 2 months that when I don't start or drive the car the battery will die in a matter of days. I have had the battery tested under load and it checks out just fine. I had the charging system checked as well and the alternator works well under load and at idle as well. I have done no mods to the electrical system except for sequentails and they use the factory wiring harness that is plug and play. I was on mustangevolution.com and mustanggtgirl05 has had the same problem for a year now as well (she has had the car for 2 yearsand only 6000 miles). She has had the battery, alternator ,and smart junction box replaced through Ford and still has the same problem. I store the car in the winter for 6 months and just started that in November. The car has 1700 miles on it and was made in March of 06 and I have heard that if the car is not driven enough to put a full charge on the battery that the battery will have current draw from the computer,radio,and security system. I understand that could kill the battery but it would take up to 30 days (according to a GM engineer). Has anyone else had this problem? Does anyone know of a TSB for the problem or a recall? I use the car for show and to put a fix on the car through winter until I can get the car in for warranty work I am going to run a battery tender through the winter and start the car for 30 minutes once every 2 weeks. Any help would be appreciated! Thanks
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Old 11-26-2006, 10:47 AM   #2
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Default RE: 06 GT battery draw and battery dies in 2 days with car off

Someone here found a random current draw from the CD changer if the Shaker radio is on when you shut the car off. This wasn't the typical draw to keep your station presets--it was significant enough to drain the battery in short order. There haven't been any TSBs or other guaranteed fixes from Ford that have been made known yet. The thread was within the last week or so, IIRC.
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Old 11-26-2006, 11:25 AM   #3
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Default RE: 06 GT battery draw and battery dies in 2 days with car off

I store my GT in the garage during the winter months also. Had the battery go dead on one occasion, now I start her twice a week, back out of the garage and let her warm up to full operating temp. In addition, I make sure the "skipper" 1000 is off before shutting her down and I don't activate the alarm while she's parked, it's worked for me so far.



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Old 11-26-2006, 11:31 AM   #4
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Default RE: 06 GT battery draw and battery dies in 2 days with car off


Quote:
ORIGINAL: madmike

In addition, I make sure the "skipper" 1000 is off before shutting her down and I don't activate the alarm while she's parked, it's worked for me so far.
Do you know if the alarm was activated or if the radio was left on in the one situation where your battery died?

I have not had this problem. In my case, I shut the radio off, and I do not activate the alarm when it is garaged. This is going to be my first winter with it so I do not have much experience yet.

To any Ford employees/engineers out there - where is Ford on this? It's obviously a problem. Are they looking at it? Any TSB forthcoming?

Thanks.
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Old 11-26-2006, 11:47 AM   #5
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Default RE: 06 GT battery draw and battery dies in 2 days with car off

Yes to both. After reading of simular problems by other Forum members I started the twice a week start up's.
Went on vacation in October for 2 weeks, came back and half expected the battery to be dead, but she "fired up" on the first turn of the key.
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Old 11-26-2006, 11:58 AM   #6
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Default RE: 06 GT battery draw and battery dies in 2 days with car off


Hi mygt500

read this.

http://www.mustangforums.com/m_2281696/tm.htm

If you have an amp meter, give it a try. The problem is actually pretty easy to duplicate.

Pat


Quote:
ORIGINAL: mygt500

Hello,
This is my first post to mustangforums.com! I have a 06 GT with Eleanor bodykit and all GT500 badges and emblems. I have just recently noticed for the past 2 months that when I don't start or drive the car the battery will die in a matter of days. I have had the battery tested under load and it checks out just fine. I had the charging system checked as well and the alternator works well under load and at idle as well. I have done no mods to the electrical system except for sequentails and they use the factory wiring harness that is plug and play. I was on mustangevolution.com and mustanggtgirl05 has had the same problem for a year now as well (she has had the car for 2 yearsand only 6000 miles). She has had the battery, alternator ,and smart junction box replaced through Ford and still has the same problem. I store the car in the winter for 6 months and just started that in November. The car has 1700 miles on it and was made in March of 06 and I have heard that if the car is not driven enough to put a full charge on the battery that the battery will have current draw from the computer,radio,and security system. I understand that could kill the battery but it would take up to 30 days (according to a GM engineer). Has anyone else had this problem? Does anyone know of a TSB for the problem or a recall? I use the car for show and to put a fix on the car through winter until I can get the car in for warranty work I am going to run a battery tender through the winter and start the car for 30 minutes once every 2 weeks. Any help would be appreciated! Thanks
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Old 11-26-2006, 01:10 PM   #7
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Default RE: 06 GT battery draw and battery dies in 2 days with car off

Why is telling us you have a body kit and bogus badging on the car revellant to your dead battery story?

As far as your problem, it's the radio.
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Old 11-26-2006, 01:27 PM   #8
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Default RE: 06 GT battery draw and battery dies in 2 days with car off

Quote:
ORIGINAL: hawgman

Why is telling us you have a body kit and bogus badging on the car revellant to your dead battery story?

As far as your problem, it's the radio.
I was wondering the same thing.... lol.

Check to make sure you dont leave anything plugged into the cigarette lighters since they draw constant power even when the vehicle is off. If thats not the problem bet on the radio.
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Old 11-26-2006, 01:52 PM   #9
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Default RE: 06 GT battery draw and battery dies in 2 days with car off

If you cannot solve the problem, buy a Battery Tender. This will keep your battery fully charged. If there is a draw on the system and battery voltage goes down, this will put a slow charge into the battery to bring it back up to full. Check your local auto parts store. Most are used with ATV's, boat's, and Classic Cars that are stored most of the time. I have one and it works great.....
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Old 11-26-2006, 01:57 PM   #10
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Default RE: 06 GT battery draw and battery dies in 2 days with car off



C'mon hawgman! We all know a body kit adds HP. That HP puts and extra load on the alternator and battery! gee....






Quote:
ORIGINAL: hawgman

Why is telling us you have a body kit and bogus badging on the car revellant to your dead battery story?

As far as your problem, it's the radio.
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Old 11-26-2006, 03:40 PM   #11
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Default RE: 06 GT battery draw and battery dies in 2 days with car off

I had a 2amp draw from my battery and the car would die over night. I took it to Ford and they found that two of the six factory amps were bad. Replaced the amps under warranty and problem solved.


Good Luck
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Old 12-09-2006, 01:47 AM   #12
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Default RE: 06 GT battery draw and battery dies in 2 days with car off

Hey thanks for the tips and man are people that brutal on here all the time!
Quote:
ORIGINAL: freefallpat



C'mon hawgman! We all know a body kit adds HP. That HP puts and extra load on the alternator and battery! gee....






Quote:
ORIGINAL: hawgman

Why is telling us you have a body kit and bogus badging on the car revellant to your dead battery story?

As far as your problem, it's the radio.
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Old 12-09-2006, 01:52 AM   #13
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Default RE: 06 GT battery draw and battery dies in 2 days with car off

So being a contributor makes u an ***** and sarcastic! Thanks for the post but the radio was not the problem and it has since been solved. Can't a proud mustang owner give a little info even if it isn't relevant to the post?
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Old 12-09-2006, 12:11 PM   #14
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Default RE: 06 GT battery draw and battery dies in 2 days with car off

Dude, people are normally nice. Some have a weird sense of humor, others don't...just like real life out there. You can ignore them and move on..that's what I do...reference your issue what exactly was the problem if not the radio...I am curious.
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Old 12-09-2006, 12:37 PM   #15
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Default RE: 06 GT battery draw and battery dies in 2 days with car off

hey mygt500 do you have any pics of your car i want to see how it looks....
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Old 12-10-2006, 03:19 PM   #16
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Default RE: 06 GT battery draw and battery dies in 2 days with car off

There are only two things that can discharge the battery when the vehicle is parked:

1) a drain by the vehicle i.e. a short somewhere, or a module which won't "go to sleep." If you use a meter to determine if there is a draw on the battery from the vehicle, it can take up to 30 minutes or so for every module to shut down. After 30 minutes, the battery draw should be about 0.1A.

2) a drain caused by an internal problem with the battery. When you have the battery load tested, it may test out OK, because they only test the battery fully charged, and presumably, reasonably soon after recharging. If there is a small short inside the battery, the battery may test out OK under load, and then be dead in 2 days.

Also important is that the capacity of the battery will be greatly diminished after repeatedly being discharged to the point where the vehicle will not start, meaning in the future, it will go dead much sooner then when new.

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Old 12-11-2006, 12:18 PM   #17
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Default RE: 06 GT battery draw and battery dies in 2 days with car off

Check the camera at left to see the rest and email me if you want more!
Quote:
ORIGINAL: s2k

hey mygt500 do you have any pics of your car i want to see how it looks....

[IMG]local://upfiles/54958/C2B5648FA40E468CB17392CBBF39AFCB.jpg[/IMG]

[IMG]local://upfiles/54958/93B9F64518414A548BE89056E60BDEE7.jpg[/IMG]
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Old 12-11-2006, 02:33 PM   #18
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Default RE: 06 GT battery draw and battery dies in 2 days with car off

I had this problem... done the radio trick.. no problems after that.. ( crossing fingers )


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Old 02-15-2007, 07:43 PM   #19
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Default RE: 06 GT battery draw and battery dies in 2 days with car off

Since the winter started I noticed my 2007 GT tends to not start after 2 days. I took it to the dealer and they said the battery tested OK and that the ECU in "these new cars" draws more power and thus you have to start it more often. This implies that by design I cannot park my Mustang at the airport when I go on a trip.

I am going to try checking the current draw and I will try turning the radio off now. But it sure is a pain in the **** to know that if you want to drive the mustang once a week in the winter you have to jump start it (in 7 degree weather that sucks).

How does your Mustang sound when it is having trouble starting? Mine makes a click every second and all power to the car is repeatedly turned off and on. It sounds like a master relay is killing power to everything (even the starter) when the battery is just starting to get weak. I know what the sound of clicking starter selonoid sounds like, but this is different. If you were to hold the key in START and repeatedly put your foot on and off the clitch (to release the starter safety switch) you could simulate the sound of this behaviuor. It almost seems that there is juice left in the battery and the ECU is making a decision to shut the car's electronics down every time the starter draws a current spike.

-howy
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Old 02-15-2007, 07:57 PM   #20
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Default RE: 06 GT battery draw and battery dies in 2 days with car off

So what was the reason for your battery trouble? If you please.
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Old 02-15-2007, 07:57 PM
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