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Wausau/Weston

Weston

6205 Schofield Ave.
Weston, WI 54476
Ph: 715-355-4050
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Stevens Point

Stevens Point East

5382 U.S. 10
Stevens Point, WI 54482
Ph: 715-341-1600
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Stevens Point South

3145 Church St.
Stevens Point, WI 54481
Ph: 715-341-1576
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Stevens Point Express

3147 Church St.
Stevens Point, WI 54481
Ph: 715-341-1576
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Green Bay

Green Bay East

2128 Main St.
Green Bay, WI 54302
Ph: 920-465-3790
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Green Bay West

2045 S Oneida St.
Green Bay, WI 54304
Ph: 920-494-4936
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Appleton

Appleton East

3333 Express Ct.
Appleton, WI 54915
Ph: 920-993-3339
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Appleton Express

1302 N Richmond St.
Appleton, WI 54911
Ph: 920-734-0555
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Appleton North

424 W. Northland Ave.
Appleton, WI 54911
Ph: 920-364-9540
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Neenah

Neenah

114 South Green Bay Rd.
Neenah, WI 54956
Ph: 920-722-2466
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Monday 8 January 2018

Simple Answers About Your Check Engine Light

Posted by at 3:19 PM

Simple Answers About Your Check Engine Light

Question: My Check Engine light is on and my friend thinks he can get the code read and know what part to replace to fix my car. I say it’s not that simple. Who’s right?

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 will tell you exactly what is wrong. For any given trouble code, there are 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, ignition problems, compression
issues, etc. Each of those possibilities requires additional diagnosis to confirm or rule out a cause. Once our trained Auto Select technician with state-of-the art diagnostic tools and extensive research databases is able to nail down the problem, then he can set about getting it fixed. A complicated diagnosis may take some time.

Your friend might be tempted to bypass a diagnosis charge by taking a trouble code reading with an inexpensive scan tool and start replacing parts. He might get lucky, but chances are you’ll end up spending more time and money than if you went to a professional with the right equipment. 

A final word – a flashing Check Engine light indicates that a condition exists that could lead to serious damage. Drivers should get to your service center right away. A steadily illuminated Check Engine light is less urgent so you can get it checked at your convenience. But keep in mind that a minor issue today can become more serious if left unresolved. Our skilled professional technicians want to keep your vehicle in top shape.

Do you have a Check Engine Light on? Stop by or give your Auto Select Service Advisor a call to schedule an appointment today. Click here to schedule online.