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2006 Hummer H3 Question: Check engine light comes and goes at random

 

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Visitor, Oceanside, CA, May 18, 2010, 10:33

Check engine light comes on for a short time and goes off. This happens at random.

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  • Answer #1

    Visitor, March 17, 2011, 06:02


    Had that same problem and now it finally came on all the time. I am told it is my Coolant Temp Sensor. I was told to check my Coolant levels because that could cause the problem.

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