Q: What is the “Check Engine Light”?
A: The CHECK ENGINE LIGHT is the car’s malfunction indicator lamp. The light alerts the driver that the power train control module has detected an on-board system fault. When this occurs, a trouble code is generated.
What does this mean to you? Most times the car may seem to run and drive fine and is only related to emissions. However, when the fault light is on, your car’s computer may revert to default settings, causing other issues that you might notice.
As a result, your car may experience a reduction in fuel economy, odor from the exhaust, loss or lack of power, and on some vehicles the transmission may not work correctly.
Q: Why is my Check Engine Light on?
A: Your check engine light may be on due to one or more of 200 faults from a bad oxygen sensor or faulty fuel cap, to a struck solenoid or broken wires to a sensor.
Your light may also come on to notify you of other problems in other car systems, such as the transmission, body control system, or anti-theft system.
Q: What do I do when my Check Engine Light comes on?
A: Take a look at your other indicators and gauges (coolant, temperature, battery light, and so on). If everything looks normal and the car seems to drive OK, come by Twin Automotive and have the car looked at as soon as you can.
In most cases, when the check engine light comes on and you notice a driving problem, you can still drive your car to the shop.
NOTE: In some cases, driving your car while the check engine light is on can cause damage to your car’s catalytic converter.
Q: What’s wrong when my car won’t start?
A: Typically a car will not start if the starter is bad or the battery is low.
Check to see if the battery level is normal. If normal, crank the engine. If it will not crank, then the starter may need to be replaced.