Tag Archives: Check Engine Light

Simple Answers from Bret's Autoworks: Check Engine Light

Simple Answers from Bret's Autoworks: Check Engine Light

Question:My Check Engine light is on and my boyfriend thinks he can get the code read and know what part to replace to fix my vehicle. I say it's not that. Who's right?     Bret's Autoworks Answer: Good news – you are! Just look at it logically: there are hundreds of things that can go wrong with your vehicle. Some are simple and some are quite complicated. Let's take a step back. Over 80% of engine functions are computer controlled. The computer receives information from dozens of sensors. When a sensor reading is out of range, a trouble code is entered in the computer and the Check Engine light is illuminated. It's a common misconception by drivers that the trouble code, there is any number of faults that would trigger the code. For example, a code indicating a misfire on cylinder three could be due to a bad spark plug, a failed coil ... read more

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