Tag Archives: Check Engine light is on

Check engine light is on, now what?

When your check engine lights comes on, you may be torn between utter panic and just wanting to ignore it and hope it goes away. That’s perfectly understandable. That same check engine light could come on for anything from a serious engine or transmission problem all the way down to a loose gas cap. There’s a very common misconception that the trouble codes stored in your engine computer when your check engine light comes on will specifically identify a problem. It’s really more like pointing to the symptoms of a problem. Think of taking your temperature. Say it’s 101. Your heat sensor – the thermometer – tells you that your temperature is out of the normal range. But it doesn’t tell you why you have a fever. Is it the flu or a sinus infection? You need more information; more tests. For any given trouble code, there could be a number of causes. So your trained technician takes the trouble code as a starting point and begins a diagnostic process to deter ... read more

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