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Why would the check engine light come on in a 2004 Chevy silverado truck?
Wiki User
∙ 16y ago
This is a question with a vast number of possibilities. There are many things that could cause this. However, it is most likely going to be something electrical, such as a sensor. If you don't have a code scanner, check with your local auto parts store to see if they can perform a free "engine code scan". This should tell you the primary cause of the light being on, and most likely give you an idea to the solution, or at least a starting point. Parts stores such as Auto Zone and Advance and many others usually perform these "code scans" free of charge. Good luck!!!
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Because the computer in your truck found a sensor that is reporting a problem. Go to Auto Zone and they will read the code for you and tell you what the problem is.
Wiki User
∙ 16y ago
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