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2006 GMC C2500 Dead Battery

Tiny
TOM MCPHILMY
  • MEMBER
  • 2006 GMC C2500
Electrical problem
2006 GMC C2500 V8 Four Wheel Drive Manual

In summer 2008 began ride motorcycle to work, if tuck was not used for a week battery was dead. This summer battery goes dead in 24 to 48 hrs. Battery was change for a nearly new battery this spring. When run every day even in winter truck is OK. Must have a draw down some where in system.

What should be suspect first? Or second third?
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Saturday, September 12th, 2009 AT 7:38 AM

1 Reply

Tiny
DR LOOT
  • MECHANIC
  • 2,311 POSTS
Do you have on OnStar? And is it active? The reason I asked that is because OnStar knows where your truck is at all time and it does draw the battery dead. If you do not use it, this is what I want you to do. Get in your truck and contact OnStar have them do a diagnosis on your computer and see if they come up with anything. Also, if you leave your truck parked with the alarm activated. It will drain your battery also.
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Sunday, September 20th, 2009 AT 4:38 PM

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