As the proud owner of a Hyundai Tucson, you likely want to keep your crossover SUV in good condition. Of course, this means keeping up with regular maintenance, like oil changes and tune-ups. It can be alarming, though, if the check engine light comes on. Fortunately, this light doesn't always indicate that the engine is failing. Often, it is simply warning you of a possible problem so you can remedy it before a major repair is needed. The following are some of the common reasons why your check engine light is on.
Flashing
A flashing light is the one time when you need to act immediately. If your check engine light comes on then begins to flash, cut the engine immediately. Wait a few minutes, then attempt to restart the car. If it continues to flash, you need to contact your mechanic and arrange to get your vehicle in for servicing. They will likely advise you to have the car towed, since a flashing light can indicate severe problems, such as a failing catalytic converter or an issue with the spark plug and wiring system. Fortunately, a prompt repair will prevent any more expensive issues with the engine itself.
Solid
More likely, the light comes on and stays on, or it comes on and off periodically as you drive. While any check engine light means you need to have the Hyundai serviced, a solid, non-flashing light does mean you can get the car into your mechanic at your earliest convenience instead of immediately. You can usually even drive the car instead of having it towed.
Emission issues
The most common cause for a solid light is that something as malfunctioned in the emissions system. The Evaporative Emissions Control System in Hyundai vehicles is designed to catch any issues in the system immediately. Although an emissions problem may not affect the car's immediate performance, the loss of gas vapors to the atmosphere is an environmental issue. Plus, emissions problems can affect gas mileage. Fixes are typically inexpensive and quick, usually requiring little more than the replacement of a valve or failing sensor.
Acceleration problems
Although not as common, sometimes the issue is with the throttle sensor or the accelerator position switch. When this is the case, your vehicle may fail to pick up speed when you try to accelerate, or the engine will rev as the RPMs go up, but the car won't increase in speed. Often, although not always, both the check engine and the ESC light will illuminate. Both issues require replacement of either the sensor or the switch so your car can operate properly.
For more help, contact a business such as First Class Engines.