Category Archives: Dashboard

How Your Check Engine Light Works

Have you ever had an experience like this in Greeley, Colorado? You drive through the one of those automatic car washes. When you get to the end, where the dryer is blowing, your Check Engine light starts flashing!You fear the worst, but within a block or two, the light stops flashing, but stays on. By the next day, the light is off.You wonder; "What was going on?" Well, it's actually a good lesson in how the Check Engine light works.Your air intake system has a sensor that measures how much air is coming through it. When you went under the high-speed dryer, all that air was blasting past the sensor. Your engine computer was saying, there shouldn't be that much air when the engine is just idling. Something's wrong. Whatever's wrong could cause some serious engine damage.Warning, warning! It flashes the Check Engine light to alert you to take immediate action.It stopped flashing because once you were out from under the dryer, the airflow returned to normal. Now the ... read more

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