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Your Check Engine Light may be indicating a simple problem that’s easy to fix—such as a loose gas cap that needs to be replaced. It could also be a warning of a serious problem that could damage your engine components. Your Check Engine Light blinks or glows depending on what’s wrong with your vehicle.


Consumer Reports tells you what the check engine light means and what you should do when you see it. Learn how to determine whether your car has a loose gas cap—or a serious engine problem.


Having the “check engine” light turn on can be an unsettling experience. It could indicate a major problem that requires stopping the vehicle immediately to avoid a costly engine repair. However, the “check engine” light can also be triggered by a number of minor issues.


Occasionally, the check engine light comes on when nothing is wrong with the car, said Steve Mazor, chief automotive engineer for the Auto Club of Southern California. It could be a temporary ...


If this was indeed the trigger, your check engine light should go off within 10 or 20 miles once you’re back on the road. 2. A certified mechanic should be able to diagnose the problem easily. Technology is on its way to helping us figure out what’s gone wrong when the check engine light comes on.


In general, five common malfunctions can cause the check engine light to come on, and some of them are simple to fix yourself. Let’s take a look at the most common issues.


Check engine light came on car is running fine ,went to the shop they told me it was air fuel ratio sensor,got it replaced 2 days later light comes on again.I take it Monday to the same shop and now they tell me it's my C. Converter. In a matter of 5 days the shop changes,there diagnosis. reply to Ash;


Have you ever wondered what causes a car's check engine light to come on? Here, we list some of the most common mechanical and electrical problems that can trigger this important warning, and ...


Q: What does the Service Engine Soon Light mean? The meaning of the "Service Engine Soon" Light is dependent on the make and model of your car and the manufacturer’s specifications. There are numerous dashboard...


How to reset engine management light. While the documentation for some older cars provided instructions on how to check and reset engine warning lights, it's not usually possible now cars have ...