Why Is My Check Engine Light On?
June 7, 2016
The Check Engine Light strikes fear into the hearts of some Royal Oak drivers, and is totally ignored by just as many. Just what it means is a mystery to most people.
Let's get the urgency issues out of the way first. If your Check Engine light is flashing, that means that something is wrong that could cause engine damage. Naturally, you need to get that taken care of right away. If your check engine light is flashing, you shouldn't drive at high speeds, tow or haul heavy loads. Take it easy all the way to your Royal Oak service center.
If the light is glowing steadily, you should keep an eye on it for a day or two. If the light doesn't go off, schedule an appointment with your friendly and knowledgeable pros at TLC Custom Exhaust Brakes & Tires to get it checked out.
Some more information on how the Check Engine light works may be helpful for Royal Oak drivers. Most of your engine functions are controlled by a computer, not surprisingly, called an engine control computer. The computer is able to adjust many engine parameters for environmental conditions, engine condition and even the way you drive.
In order to make these adjustments, the computer relies on a network of sensors to provide data. The computer knows the proper operating range for each sensor. When a sensor reading is out of range, the computer runs some tests and may turn on the vehicle's Check Engine light.
A simple example is a loose or missing gas cap. This may cause one of the sensors to read out of range. The computer doesn't know if it's a serious condition that caused the reading or just a loose gas cap, so it stores a trouble code and turns on the Check Engine light.
Now when you tighten up the gas cap, the sensor readings will be in the correct range. The computer will keep checking on the report for a day or two. Since a bad reading didn't come up again, it turns off the Check Engine light. The computer will also try to make adjustments to compensate for some readings. If it can do so, it'll then turn off the Check Engine light.
If the problem can't be resolved then the light will remain on, and you should get your vehicle looked at. Your friendly and knowledgeable pros at TLC Custom Exhaust Brakes & Tires will plug a scanner into the on-board diagnostic port and read the trouble code stored in the computer. The trouble code will give the technician a starting place as he diagnoses the cause of the problem.
TLC Custom Exhaust Brakes & Tires
1735 N Main St
Royal Oak, Michigan 48067
248-541-8300
http://www.tlcautocareroyaloak.com
Need Service?
More articles from TLC Auto Care

Something to Latch On To (Hood Latch Safety)
October 25, 2026
The other day, a driver was trying to open his vehicle's hood so he could add some windshield washer fluid. But when he pulled the hood release inside the car, nothing happened. Usually, opening any hood is a 2-step process. You pull the hood release (which is usually a handle under the dashb... More

Ready, Set, COLD! (Getting Vehicle Ready for Winter)
October 23, 2026
When the temperatures plunge, your vehicle better be ready because it faces a whole new set of challenges. Rubber stiffens, glass fogs, fluids freeze. Just thinking about it can get your heart beating faster. So here are some tips for getting ready for those inevitable colder temperatures. Ma... More

Why Timing Belt Maintenance Can Save Your Engine
October 11, 2026
One part of your vehicle you probably never think of is the timing belt. It coordinates the rotation of the crankshaft (which converts the up and down motion of the pistons into rotation motion) and the camshaft (which opens and closes your engines valves). Its vital that the timing of these mov... More

