Question about 2002 Chevrolet TrailBlazer

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The service check engine light is on I already

The service check engine light is on I already checked the gas cap

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If the light was flashing when it came on, then it means your engine is misfiring.

A solid light can mean anything.

This light comes on when the computer detects a fault of some sort in its diagnostic tests. If it keeps detecting this issue, the light will remain off. If the light turns off, then it has detected that the issue may no longer be present.

In order to find out what the exact reason was for your light, You need to have your car computer scanned to retrieve the code that the computer would have stored when the light triggered. Most garages will do this free of charge. The code will tell you what may have caused the light to initially go

Posted on Oct 02, 2009

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