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Check engine error light is always on, why? - 2005 Chevrolet TrailBlazer

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Telling you something is wrong or was wrong. Stop at one of the major autoparts stores like autozone or Pep boys, and they will scan for codes for free, then get back to us with those codes & we will help.

Posted on Jul 26, 2009

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If the check engine light is on, it means that the computer has detected a fault. Take the vehicle to an autoparts store and have them use a scan tool to retrieve any fault code(s) that are stored in the computer. Most parts stores offer this service at no charge. Getting the code(s) will help narrow down any problems/potential problems. Sure hope this helped and best wishes.

Posted on Jul 26, 2009

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