Check engine light is a sign on the dashboard that many vehicle owners fear. Known
MIL(Malfunction Indicator Light), the engine check light signals that something is wrong. The check
engine light can mean many things, from a gas cap not tightened properly to a damaged oxygen
sensor, maybe a spark in plugs, or it could be something as serious as a faulty catalytic converter.
Many of the causes of illuminated check engine light are easy to solve, but sometimes, it means that
something has gone seriously wrong. The check engine light is a component of your car’s on-board
diagnostic system. After the late 1980s, computers have a highly controlled car’s performance
including engine speed, fuel mixture, and engine timing. When it finds any problem, the computer
turns on a yellow warning light labeled as “service engine soon”, or “check engine light” or perhaps
just an engine-shaped icon popping up. This light is known as the International Check Engine Symbol.
In addition to this, the computer stores a “trouble code” that identifies the source of the problems
such as a misfiring engine. The Auto Repair shops have standard pieces of equipment to read the
code. The code will point out the problem and still require an experienced professional to fully repair
Why does it happen?
There are mainly two reasons that can be responsible for engine misfire and blinking check engine
light. The Ignition System and the Fuel Delivery System.
A defective ignition system fails to ignite fuel properly causing a misfire. Poor fuel delivery will also
cause a vaporized fuel mixture having a high proportion of air; it also causes a misfire.
Generally, problems with ignition system include:
1. Defective spark plugs
2. Oil on spark plugs
3. Deficient ignition coils, etc.
Similarly, defects in the fuel delivery system include:
1. Deficient or clogged fuel pump
2. Bad in-line fuel filter
3. Deficient fuel pressure regulator
4. Deficient fuel injectors, etc.
Along with the check engine light, you may experience one or more symptoms that include:
1. Difficulty in starting the engine
2. Mediocre fuel performance
3. Peculiar misfire sounds
4. The gas smell on vehicle’s tailpipe
5. Black smoke coming out of the tailpipe
6. High fuel consumption
7. Lack of acceleration
8. Engine overheating
9. Engine oil leakage
10. Rough idle
What to do?
While you’re driving and the check engine light flashes, don’t drive your car. Pullover and do a quick
inspection of engine status. Check engine temperature. If your dashboard gauges show that the
engine is overheating then you need to shut off the engine immediately. Check for rubber seal of the
gas cap and try tightening or replacing it. However, when the “check engine” symbol illuminates, it is
highly recommended to give immediate attention. Look for a trained professional around. Waiting
too long for a repair could result in further damage to the components of the engine; for example,
burning the valve within the engine. Do not confuse yourself if the mileage does not drop and check
engine light icon blinks, your vehicle still needs a proper check.
At Eurotech Car Care, we provide the best possible solution for Killeen, TX check engine light. Don't wait, Give us a call at (254) 200-1009 to schedule your diagnostic.