Question about 2006 Buick Rainier

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I have a 06 Buick Rainer, that started to idle low, and the lights go dim. And if you let it idle to long the battery goes dead...

I have put the Buick on a charger to start it, works fine driving down the road...

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Posted on Jan 02, 2017

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SOURCE: Buick Regal 2001 LS dashboard lights flash off and on

It turned out the ground wire to the battery was loose, Evidently, it loosened up when driving so mimiced the earlier symptoms because it connection was sporadic. I hooked up to a computer to verify after connection tightened and it came away with no errors or problems.

Posted on Apr 19, 2009

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SOURCE: Low voltage, the battery runs low when running the car

What is the voltage you are reading? Is it below 13.2 or so? Also have you checked the current with the engine off to see if something else is working that should not be on. I ran across this twice while working on a truck and car. A relay that was wore out keep trying to close and would drain the battery every couple of months. Sometimes you can hear them clicking or buzzing. Touching them sometimes they are warm or real hot. But that is not a sure sign it is bad. In my Trailblaze they get hot but are ok. Another thougth is the belt on your alt, correctly set to spin it at the right voltage. I have ran across this many times lately with serpatine belts.

Posted on Aug 04, 2009

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