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2005 Mustang GT Dead Battery

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Old 02-07-2007, 02:27 PM   #41
dkegel
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Default RE: 2005 Mustang GT Dead Battery

I wanted to update everyone on this. As I posted ealier, on 1/23 I found that my battery had died after sitting at the most,2 weeks. I charged up the battery and found I indeed had left the radio on. I ran the car for a bit, turned off the radio and shut of the car. It's been sitting since then, which is almost exactly another two weeks. I went and checked it now and it started right up. The battery was fine. So this seems toconfirm (in my mind) that leaving the Shaker on is what is draining the battery.

Food for thought.

Dave Kegel
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Old 02-19-2007, 03:48 PM   #42
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Default RE: 2005 Mustang GT Dead Battery

car was at dealer for a week. picked up thursday. drove friday, sat. went out to start dead. went to dads to get charger came back it started but barely turned over. i turned off the radio everyday i have had it back. they also replaced the original shaker 1000 head unit. sunday car is dead again, i just tried jumping it and it wont turn over so its being towed to the dealer again. any other ideas????? ford dealership sure dont have any.
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Old 02-20-2007, 02:27 PM   #43
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Default RE: 2005 Mustang GT Dead Battery

they just put in a new battery. i think they re just trying to mask the problem until the car goes off warranty. if i get the extended warranty does it take care of electrical problems? the car has 28000 now, if it takes car of electrical issues i'm goingto buy the extended.
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Old 02-25-2007, 12:12 AM   #44
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Default RE: 2005 Mustang GT Dead Battery

Well my battery keeps draining too. I have an 07 GT wtih aftermaket alarm. Which i thought was the cause of my drain issues.
The alarm installer did find some drains issues with the alarm and replaced some relays. But my battery is still draining to this day although not as quickly . And It is still the original battery, so it may be weak now.
Note that oringally my car died after about 1 week sitting around.After jumping it and driving around inoticeed a gradual decrease in the amount of time it took the battery to drain. (eg 3 days, 2 days, 24 hours, 12 hours, 6 hours, etc) Eventually six hours was the most i could get out of it, even after driving around for 1 hour.
All this was before getting the alarm relays replaced.

Now that the alarm issues ared fixed, my drain issue has still not gone away. Hower it's imporant to note, i can still start my car after 2 days, if i drive the car around every day for at least 1-2 hours. At5 days of no driving, by battery is so dead the the interior lights wont even come on.

So i beleive that this problem now consists of the fact the my battery is weak along with the nominal current drainage. And the fact that the alternter doesnt' have suffuciant power to fully recharge the battery as descibed in this post
"NOTE TO ALL: Your alternator WILL NOT charge your battery unless it is 140-200AMP alternator. OEM alternator does not put out enough amps to charge the battery so don't get confused. I learned this after talking to a ton of mechanics. "

I decided to run some tests. I hooked an ammter between the neg battery and here is what i found.
- As soon as i closed the doors. The amps reading was about 3.3 amps
- Afterthe interior light when Off the reading droped to 2.2 amps.
- then after about 40-60 secs, the reading dropped to about 0.180 amps

Im sure that my alarm draws about 0.040 (amps). The would mean that my Musang alone should draw between 0.120 to 0.150 (amps) when everything is off.

Now all this so far seems to be ok. Since modern cars do drain about 0.100 (amps) in stand by mode (OFF).
I do not see any exesive power loss. For a battery to drain as quickly as a week, you need a good 1.0 (amps or more).

Not that i have not tried testing with the radio in the ON position, all the above readings were from the radio being OFF. Since i wanted to eliminate from any drain issues.

I will shorting be gett my clamp-on DC ammter. And will be able to run some better tests. I will also test the Radio ON/OFF theory to see if infact anything remains on after the ignition key is in the OFF position.

I want to have as much info as possible when i take this problem to the dealer, this they are bunch of ********* and only fix whats on TSBs.

I'll follow up shortly.




Quote:
ORIGINAL: tempman

I've had dead battery problems as well with my 05 GT standing for just 2 days - after 1 day its a little hesitant when starting.

having trawed several forums It is clear this is a common issue !

This is where I am up to: a quote from my post on another forum :- dead battery

"
Quote:
Ok, I just got in from testing my cars current drain in the cold -2.0c which for us brits is chilly!

the car has been stood for a 24 hours & before I started, I checked the battery voltage and it was down from 12.4 yesterday to 11.8v !

I unclamped the negative cable from the battery and used an amp meter in line between the negative post on the battery & the cable .

for the first 30 secs or so the amps fluctuated around 2 to 2.5 amps then settled at a steady 1.1amps during this time the interior light stayed on . I couldnt see from the manual which fuse to pull to turn it off so I just opened & closed the drivers door to force it to switch itself off. that done the amps reading dropped to a steady 0.39amps

then I pulled the shaker 1000 amp fuses - fuse 6 & fuse 9 . Fuse 6 caused a drop to 0.12 amps . Fuse 9 made no difference, I then prceeded to pull in turn every other fuse and relay in the power box under the hood but no change from 0.12 amps. I tried the fuses inside the car but could easily get to them all so only pulled about half. no change to the amperage though.

so in the end I pulled both shaker 1000 fuses ie 6& 9. and the amperage remained at 0.12amps.


there is clearly something wrong with the fuse 6 circuit but I dont know how to proceed from here.

The car just about fired up & after running it for 10 mins or so the battery voltage was 12.80 . I guess I need to check it again tomorrow to see if the voltage loss is reduced."
does anyone here know if 0.12 amps is a reasonable current draw when everything is "off"`including the alarm ??

I am in the Uk so cant get any warranty help from Ford.
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Old 02-25-2007, 12:30 AM   #45
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Default RE: 2005 Mustang GT Dead Battery

friend has '05 says battery dies in 10 days , mine hasnt yet but only gone 6 days without a ride. he runs a charger to the battery in the winter
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Old 02-25-2007, 12:40 AM   #46
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Default RE: 2005 Mustang GT Dead Battery

i have a napa trickle charger. just like a tender. only cheaper!
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Old 02-26-2007, 11:17 AM   #47
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Default RE: 2005 Mustang GT Dead Battery

Turn radio off AND remove all cd's from Shaker. Mine's an 05. Sounds stupid but last year I left cd's in the system and battery died. This year, took them out and so far, three months later(in storage) still starts without charge. Solved my battery problem!?!?
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Old 02-26-2007, 03:44 PM   #48
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Default RE: 2005 Mustang GT Dead Battery

you know my changer does make all kind of weird noises while i have been having this problem when starting. even when the thing is in the off position.
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Old 02-26-2007, 03:47 PM   #49
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Default RE: 2005 Mustang GT Dead Battery

and one more thing, when they replace my shaker head unit they left the cds in there so im out six cd's which they arent going to replace. they said i should have taken them out before bringing it in, i said didnt know you were going to replace that unit. then they said thats is tough luck, they will try to get them back for me, no word on them yet
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Old 02-26-2007, 09:39 PM   #50
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Default RE: 2005 Mustang GT Dead Battery

This weekend I will be doing the shaker scoop install, if it gets here. It will be 2 weeks since running. The shaker radio is off, has 5 cd's in it as always, alarm is on, doors locked. It has always started so far after 2-3 weeks sitting this winter. After this weekend I will try leaving the radio "on" and see what happens.
Hope you get your cd's back.

[IMG]local://upfiles/53664/69D0078E93484D2CBE8A16651BF1641B.jpg[/IMG]
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Old 03-07-2007, 04:02 PM   #51
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Default RE: 2005 Mustang GT Dead Battery

G*DD*MN IT! [:@]For the second time since Dec 06, my 07 GT coupe's battery has crapped out. The first time it sat for about 5 days and there was enough left to light it up but not to crank the engine. I connected a charger and was able to drive it to the dealer where they replaced the battery. Now, after being out of town for a week, it's so dead the lights won't come on. And to make it worse, when I hook up the charger this time it activates the alarm or something and I can't get the horn to stop sounding unless I disconnect the charger. I do NOT have a shaker sound system or an aftermarket alarm. What I have is a completely unacceptable situation for which the remedy is not to buy a battery trickle charger. Doing that only lets Ford off the hook for a problem that is theirs and should not be ours. My Chevy truck can sit for a month with no problems. So can my Harley. This is not right. I will be speaking to the dealer later and will update. AAAAARRRRGHHH!
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Old 03-07-2007, 06:48 PM   #52
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Default RE: 2005 Mustang GT Dead Battery

Ok guys this is what you do.


1. Go to home depot
2. Take out a loan
3. Buy a 5500 peak watt generator
4. Strap it onto your roof.
5. When you want to start the car, give the generator a pull
6. put some loudmouths on your generator
7. Problem solved



lol I have not had a battery problem yet. Knock on wood ...
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Old 03-08-2007, 03:24 PM   #53
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Default RE: 2005 Mustang GT Dead Battery

Thanks for your valuable contribution.
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Old 04-07-2007, 02:25 AM   #54
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Default RE: 2005 Mustang GT Dead Battery

Well guys, add me to the list. I have an 05 GT with a Shaker 1000 that went dead 2 days after I drove it home in February 2005! They supposedly traced it to bad amps that were not turning off. I had two amps replaced at two different times with the car out of service for a month. And the radio seemed to fade in and out. We replaced the radio head. Still went dead after a few days, but only sometimes??? Well the last time it happened, I got ticked and pulled all the fuses for the radio under the hood, including #20 for the radio itself. I also pulled out the entire Shaker 1000 speaker and amp assembly. No problems for nine months, but no radio either. I put back just #20 fuse for the radio head so that I could at least hear the traffic report, no speakers or amps, and I am dead in a matter of days. Now I figure I have it isolated. And I do remember the radio trying real hard to read and spin the CDs when I got it jump started. I have to say that usually, this thing only needed a minimal hit on the charger to get turned over.

Back to a different Ford dealership with my tale, and story on #20 fuse. I get a call two days later and a fax as to a TSB that when cars sit for 30 days or more, Ford recommends a battery tender. I sort a flip out. I tried to explain that when I park the car at the airport for a long weekend, it is tough to leave the hood up and find an outlet for a battery tender. Then a miracle occurs. The dealer finds that my battery has an internal short and is being replaced. Now I am back to driving on a fresh battery, as I close in on 36K miles. The radio fades so badly in and out that it is often hard to hear. I suspect it will die shortly, but I am not an engineer to track down the problem.
Quote:
ORIGINAL: rhondaw

Bought a new Mustang GT in August. Twice the car has been laid up for two - three weeks in my garage while I was away working and the Battery Died both times. The first time she was locked up and the anti theft system was enabled. Thought maybe that may have been the problem. Second time she was in the garage but the anti theft system was disabled. Didn't really make a difference. Anybody else have this problem or know what may be causing this? Would like to hear from you if so.

Thanks,
Rhonda

I think I need to check on the foglight relay as posted earlier, my battery number and alternator output, and turn off and unload all CDs every day. Gosh I love the car, but it is tough.

I hope Ford monitors this message board. You can find me at jaygfitz@aol.com.
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Old 07-13-2007, 02:17 PM   #55
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Default RE: 2005 Mustang GT Dead Battery

I am going to arbitration Monday with Ford over this exact issue. So much for customer satisfaction. 05 convertible that will sometimes be completely dead after as little as 3 days sitting. Battery has died so many times the top has damage now from the windows not dropping, and Ford says it's my fault for not driving it 1-2 hours (depending who you talk to) before parking it. Grrrrrrrrrrrrrrrrr....
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Old 07-13-2007, 02:25 PM   #56
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Default RE: 2005 Mustang GT Dead Battery

Quote:
ORIGINAL: NotHappy

I am going to arbitration Monday with Ford over this exact issue. So much for customer satisfaction. 05 convertible that will sometimes be completely dead after as little as 3 days sitting. Battery has died so many times the top has damage now from the windows not dropping, and Ford says it's my fault for not driving it 1-2 hours (depending who you talk to) before parking it. Grrrrrrrrrrrrrrrrr....
Wow, I would have been irrate if they were to tell me that. My response would have been basically no other cars manufacturers have this problem. May need to go buy something other than a Ford.
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Old 07-13-2007, 02:41 PM   #57
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Default RE: 2005 Mustang GT Dead Battery

The problem is that I really like Ford's products and the dealership I purchase them at. My Mustang is one of the funnest cars I have ever owned, it is just really frustrating that Ford won't take my problem seriously and fix the car. Oh well, too late now. If it gets bought back I will buy another Ford product in a heart beat, but I don't know if I could bring myself to buy another Mustang after this ordeal.
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Old 07-13-2007, 04:31 PM   #58
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Default RE: 2005 Mustang GT Dead Battery

It's a sign from God. He's trying to keep you off the road.
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Old 07-13-2007, 07:56 PM   #59
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Default RE: 2005 Mustang GT Dead Battery

Quote:
ORIGINAL: j05gtvert

and one more thing, when they replace my shaker head unit they left the cds in there so im out six cd's which they arent going to replace. they said i should have taken them out before bringing it in, i said didnt know you were going to replace that unit. then they said thats is tough luck, they will try to get them back for me, no word on them yet
I agree with Ford on that one .
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Old 07-14-2007, 07:27 PM   #60
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Default RE: 2005 Mustang GT Dead Battery

Has anyone tried buying like a solid state optima battery?
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Old 07-14-2007, 07:27 PM
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