2005 AVALANCHE

  • Tiny
  • rag
  • 2005 Chevrolet Avalanche
  • 2WD
  • automatic
  • 40,000 miles

I have put 7 batteries on my 2005 Avalanche in the past 18 months, 2 in the past 2 months. My local Chevy Dealer can't find anything wrong with it. I then carried it to a local Alternator/Starter Shop and they couldn't find any problem. I need help.

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Tuesday, February 22nd, 2011 AT 1:27 AM

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  • Tiny
  • PROTECH1980
  • Expert
  • 928 posts

Do you own/know how to use a amp meter and willing to do some testing?

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Tuesday, February 22nd, 2011 AT 2:25 AM
  • Tiny
  • hmac300
  • Expert
  • 43,570 posts

Check the battery for a draw after the key is off. The DIY section covers how to do this. Alot of times it's the abs unit that goes bad by a transistor inside of it. These canberebuilt and the problem is fixed as they use a larger transistor. Especially if this happens overnite it may be the abs.

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Tuesday, March 15th, 2011 AT 11:08 PM

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