It will usually come on. The speed sensor on my transmission died and it displayed the check engine light.
It means your engine is no longer needed to be fixed
A malfunction indicator light is also known as a check engine light. It is a light on the dashboard of a car that goes on when there is a problem with the car's engine.
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
engine is about to stall
Check the engine oil, sometimes when the oil is low the check engine light comes on while sitting still and goes out when you accelarate.
The failure is intermittent.
unless you fix the problem, the light won't go out forever. however, you can pull the bulb that goes to the check engine light (then it can't come on).
The engine will go into "limp" mode and it will turn on the check engine light.
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
If the check engine light is flashing the engine is misfiring. Most likely a bad ignition coil.