Battery drain 2011 Tahoe LTZ

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hailbun

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Hello. I have a problem that I created when I was working on my outside mirrors. I was going to replace the motors that fold the mirrors in and the gears associated with them. When I pulled the drivers mirror off I found the plastic piece that holds the worm gear in place was broken. I decided to just put extendable towing mirrors on instead. I was on the fence before, the broken piece just made up my mind.

The new tow mirrors do not power fold like the originals, but they heat, adjust and have blinkers. When I had it all apart I cleaned the contacts up in the drivers door control with alcohol, contact cleaner and Q tips. Windows up down etc. The new mirrors only have one connection to the control unit, not 3 like before. The new mirrors function as they should.

Now, something is draining the battery. In just a couple of hours the vehicle will no longer start. Once in a while a clicking, sometimes nothing. I get 15v at the battery when the vehicle is idling. I have not fully charged the battery as this has been a daily occurrence for the past week. I've just been jumping it and driving around for 10 minutes. Battery is one year old.

The interior light goes off after the ignition is turned off and the instrument panel and radio goes off after I open the drivers door. I have unhooked then new mirror from the drivers control and it still drains the battery. I do see the little light on the door control that tells you whether the left or right mirror is ready to be adjusted stays on for at least 10 minutes after I get out. It does go out eventually.

I have read some post on parasitic drain. Before I get too involved I'd like to know if I am missing something obvious. Thanks to all.
 

Doubeleive

Wes
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Hello. I have a problem that I created when I was working on my outside mirrors. I was going to replace the motors that fold the mirrors in and the gears associated with them. When I pulled the drivers mirror off I found the plastic piece that holds the worm gear in place was broken. I decided to just put extendable towing mirrors on instead. I was on the fence before, the broken piece just made up my mind.

The new tow mirrors do not power fold like the originals, but they heat, adjust and have blinkers. When I had it all apart I cleaned the contacts up in the drivers door control with alcohol, contact cleaner and Q tips. Windows up down etc. The new mirrors only have one connection to the control unit, not 3 like before. The new mirrors function as they should.

Now, something is draining the battery. In just a couple of hours the vehicle will no longer start. Once in a while a clicking, sometimes nothing. I get 15v at the battery when the vehicle is idling. I have not fully charged the battery as this has been a daily occurrence for the past week. I've just been jumping it and driving around for 10 minutes. Battery is one year old.

The interior light goes off after the ignition is turned off and the instrument panel and radio goes off after I open the drivers door. I have unhooked then new mirror from the drivers control and it still drains the battery. I do see the little light on the door control that tells you whether the left or right mirror is ready to be adjusted stays on for at least 10 minutes after I get out. It does go out eventually.

I have read some post on parasitic drain. Before I get too involved I'd like to know if I am missing something obvious. Thanks to all.
if it is killing the battery that fast then finding it should be easy, disconnect the battery ground and connect a multimeter between the ground cable and battery negative note the voltage, starting pulling fuses one at a time
 

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