Question about 2002 Chevrolet Blazer

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Service engine light stays on after an oil change

The service engine light is on in my 2002 chevy blazer, 3.8L. How do I shut it off after changing oil?

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The Service Light indicates that the EMC has detected and problem and needs to be addressed. Your going to have the get the Blazer scanned for DTC codes which could be a simple problem as to a faulty Gas Cap to a bad O2 sensor. 
Sorry can not help you more then this but most large auto parts store like Auto Zone will scan your blazer for free and some auto shop charge as low as $10.00 to scan and reset the ECM.
Good luck and hope it's something simple.

Posted on May 22, 2009

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