Mechanics

CHEVROLET AVALANCHE ABS PROBLEM

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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Rag
February 22, 2011.



Do you own/know how to use a amp meter and willing to do some testing?
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PROTECH1980
Feb 22, 2011.
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.

Hmac300
Mar 15, 2011.

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