Back to all

Watching Your Check Engine Light

May 12, 2019

Did you know that most of the cars driving around Jackson, Missouri, carry more computer power than the Apollo 121 Lunar Module that landed on the moon in 1969?

New cars sold in the Jackson area have as many as 12 networked computers and over five miles (eight kilometers) of wiring. In fact, for the last decade or so, auto computers have been controlling about 85 percent of your vehicle's functions.

Cars have sensors for manifold air temperature, coolant temperature, manifold air pressure, airflow, throttle position, vehicle speed and oxygen content. All of this electronic wizardry is pretty complicated. So how do Jackson drivers know when there is a problem?

It's simple; the Check Engine light comes on. The computer monitors all the sensors and uses that information to decide what to adjust such as the fuel mix, spark timing and idle speed. In addition, the computer monitors its own circuits. When it finds a fault, it turns on the Check Engine light and stores a trouble code in the computer.

It can be pretty disturbing for Jackson drivers when the Check Engine light comes on. We wonder just how urgent it is. Generally speaking, it is not critical like a temperature or oil pressure light. When you get one of those it means STOP NOW! When the Check Engine light shows up, you should come in to Charlie's Fast Lube Jackson in Jackson to find out what the matter is as soon as possible.

Since 1996, there has been a strong emissions control component to the Check Engine diagnostic. But if your Check Engine light flashes on and off, you know that it is more urgent and you need to get it checked immediately to prevent damage. You should slow down and avoid towing or heavy loads until you can get it checked out.

Your friendly and knowledgeable technicians at Charlie's Fast Lube Jackson have special diagnostic equipment that will retrieve the trouble code from the computer and help him determine what is wrong. From there, we can fix it and get you back on the road.

Stop by if you're Check Engine light is on.

Charlie's Fast Lube Jackson
1901 E. Jackson Blvd.
Jackson, Missouri 63755
575-243-2226
http://www.charliesfastlubejackson.com

Need Service?

Request a Quote

More articles from Charlie's Fast Lube Jackson

Smooth Operator (Shock Absorbers)

March 22, 2026

When you are comfortably headed down the road, you may not realize how many of the imperfections in the driving surface are being smoothed out, so you hardly feel most of them. You can thank your shock absorbers for a lot of that comfort, and its important to make sure you keep your shocks in go... More

Not-So-Common Sense (Sensor Failures)

March 15, 2026

So your vehicle won't start. What's the first thing that comes to mind? Battery dead? Starter motor worn out? Out of gas? Well, those are all reasons that make sense. But your vehicle may be refusing to start because one of its computers is being warned that to do so might damage it. Here's ... More

Keeping Your Cool (Water Pump Replacement)

March 8, 2026

No matter what the temperature is outside, it's important for your vehicle's engine to remain cool, calm, and collected. Well, cool, anyway. If your vehicle has a gasoline engine, it's powered by a bunch of explosions involving spark plugs, pistons, gasoline, and air. And the by-product of all ... More