What triggers an engine light?
The light could be a minor issue, such as a faulty gas cap, or it could mean something more serious, such as a misfiring engine. The check engine light — more formally known as the malfunction indicator lamp — is a signal from the car’s engine computer that something is wrong.
Why does the Check Engine light come on so often?
Fixing the catalytic converter can be quite expensive, so be sure to have the check engine light diagnosed as soon as it turns on to avoid more costly repairs. Don’t delay in having the check engine light diagnosed. It will usually first come on because of a small issue that could turn into a major problem.
Is it possible to reset an engine warning 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 grown more sophisticated. It’s well worth paying for accurate diagnosis, though, so a proper and effective repair can be made.
What does the engine management warning light mean?
The engine management warning light is different from the other lights on your dashboard, as it doesn’t alert you to a specific fault. Unlike the coolant temperature warning or low oil level warning lights, the engine management light (EML) can be triggered for a number of reasons.
What does the warning light on the dashboard mean?
Problems can still arise, though, and the first sign of trouble is often a warning light on the dashboard, such as a ‘check engine light’ flashing. Of all the warning lights that can appear from time to time, perhaps the most alarming is the engine warning light.
When does the Check Engine light come on?
Check Engine light comes on only when it’s cold out. Banned. Rule And/Or Policy Violation Check Engine light comes on only when it’s cold out. I have a 1998 Chevrolet Cavalier with a 2.2 liter 4 cylinder engine and an automatic transmission. When it’s quite cold out, the “Check Engine” light comes on on my dash board.
Why does my check engine light come on when it’s cold?
Since then, the Check Engine light has come one and gone off again more than once, and I’ve noticed that when the temperature is mild, it goes off. My mechanic told me that it could very well be that the cold temperatures may be causing the gas cap seals to be stiff and not seat properly on the end of the filler tube.
What does the coolant temperature warning light mean?
If your vehicle has a coolant temperature warning light on it, it means that your engine is overheated. If the engine cooling system is working properly and filled or operating normally (even in hottest weather and heavy traffic), it will never overheat.
What does it mean when your check engine light says gas is leaking?
If you get an error pointing to the gas cap, it means fuel vapors are leaking out of your cap. This means it’s either cracked or just wasn’t tightened well enough.