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How do you turn off service engine soon light on 2002- 3500 duramax?
Wiki User
∙ 11y ago
there is always a reason why your vehicle will show the check engine or service engine soon light. I would suggest figuring out why it is on first. Start by bringing it to an Auto Zone they will hook it up to a computer, most of the time their machine will give multiple reason's why your light is on but sometimes they will tell you exactly what it is.....it's free so that is you first stop. If your not seeing a difference in the performance of the vehicle it could be something as simple as an exhaust leak which would probably show up on the computer as low emissions, however if your tranny is overheating the light will come on. That is why it is important to know why it is on. The best way to clear the code is to fix the problem and then disconnect your battery for a few mins.
Wiki User
∙ 11y ago
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