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Go Back   Hummer Forums by Elcova > Hummer H3 Discussion Forums > Technical Discussion and Customizing your H3

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  #1  
Old 03-09-2007, 06:09 PM
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Default leave it for a day..

Leave it for a day and it won't start. Every time its a dead batt. This is getting to be a PITA.
Who knows where I can get the best deal on a yellow top?

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Old 03-09-2007, 06:43 PM
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Default Re: leave it for a day..

Sounds like a parasitic drain. If you have any aftermarket accessories. check and make sure that they are turning off with the key and not staying on and draining power. If possible try unplugging any aftermarket accessories and leave the truck sitting for a day. If problem is still there take to the dealer and have them check for a parasitic drain. Problem could still happen with a yellowtop but would just take longer. I am running a 50 Watt mobile amatuer radio rig in mine pulling approx. 10 Amps. no problems with mine. even after sitting for a week.
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Old 03-09-2007, 08:15 PM
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Default Re: leave it for a day..

Check to make sure your seat switches are staying on. our was. Also a possible amp issue on the radio? ..just thinking out loud.

What electronic aftermarket stuff do you have? Lights? Stereo? AV? remote start? alarm?
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Old 03-09-2007, 08:32 PM
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Default Re: leave it for a day..

Quote:
Originally Posted by timgco
Check to make sure your seat switches are staying on. our was. Also a possible amp issue on the radio? ..just thinking out loud.

What electronic aftermarket stuff do you have? Lights? Stereo? AV? remote start? alarm?

I think the seat switches automatically turn off when the engine is off. But, they are back on when you start up again. The car washer accidently turned on the passenger seat warmer. I didn't know until two days later when I leaned over on the seat and felt the warmth. So, it was on while I was driving, but off when I had the engine was off.
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Old 03-09-2007, 09:29 PM
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Default Re: leave it for a day..

i smell aftermarket stuff
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Old 03-09-2007, 09:31 PM
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Default Re: leave it for a day..

Battery taps are on at all times @ 3 cigarette lighter outlets
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Old 03-10-2007, 01:16 AM
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Default Re: leave it for a day..

I am the aftermarket whore!

But everything I have is off the ignition switch. I am going to go check the Amp. I leave my radar detector on. But damn that shouldn't drain it.
I will let ya know...

Thanks everyone!
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Old 03-09-2007, 08:29 PM
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Default Re: leave it for a day..

Quote:
Originally Posted by K9sH3
Leave it for a day and it won't start. Every time its a dead batt. This is getting to be a PITA.
Who knows where I can get the best deal on a yellow top?


Geeez, knock on wood, I haven't had that problem. Other things ..lol .. YES, but not that one. Like KB7TCV says, it sounds like an aftermarket item causing a drain. Good luck and let us know if you figureout the problem.
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