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A wrench symbol came on - 2006 Chevrolet Trailblazer

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That's the check engine light. It comes on to alert you that the computer has noted a fault in one of the vehicle's systems. Take the car to an autoparts store and have them use a scan tool to retrieve any fault codes stored by the computer. That will show what faults the computer has noted, so the problem can be addressed. Most parts stores will do the scan for free. Hope this helped and best wishes.

Posted on Sep 05, 2009

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