Question about 2004 Chevrolet TrailBlazer

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2004 Chevy Trailblazer VOLTMETER flickerin back n forth/starting

I purchased a 2004 Chevy Trailblazer from a dealer, and have had no problems other than the drivers headlight went out, and i replaced it~ very easy!, and someone told me that my taillight was out, so i replaced it, very easy! Now, it all of the sudden did not start, when i pulled in after driving 40 miles home from work the other night. It started in the morning, but later today i noticed that the dash voltmeter was bouncin' back and forth between top dead center, and below. Jus' a 1/4 inch from top dead center and back from like 11 or 12 volts- i believe. Is it the voltage regulator? or is the alternator about to go out? I know that it would of been completely dead had the alternator not been chargin' the battery. It had 63,000 miles on it, when i bought it for $7,900.00, and now it has 85,524 miles on it. It was clean when i bought it, and still is. Please help me out!
Thank you,
Giovanni
925.577.7028 Discovery Bay, CA.

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Check battery connections really good...

Posted on Jul 30, 2009

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