You will have to fix the problem with the car, most places like auto zone can hook up a code scanner to the for free and tell you the reason the check engine light is on, once you get an answer, then you can fix the problem and the light should disappear.
If your check engine light is flashing , an engine cylinder misfire has been detected
I have a 98 mystique, and when the check engine light comes on, I simply disconnect the positive battery terminal for a couple of minutes. When I replace it, the check engine light is cleared. It resets the computer.
common problem with 1998 mystique check engine light on
Yes, but if it stays on you should plan to take it in soon to have the engine checked. That is why the light is there.
Check engine light usually indicates a problem in the emission control system - have vehicle scanned to determine the problem
HAVE AN AUTO STORE OR SHOP HOOK UP THE OBD2 SCANNER TO SEE WHAT CODES ARE
If your check engine light is flashing that means an engine cylinder (s) misfire has been detected what is a engine cylinder misfire and how much bdoes it cost to fix it
There is a battery light above the engine temperature gauge
not charging the battery properly... check the alternator.
On a 1997 Mercury Mountaineer : The " CHECK ENGINE " warning light is just to the left of the battery voltage gauge
Check and fix the engine.
That would be your LOW engine coolant light You can view the 1999 Mercury Mystique owners manual online at : www . motorcraft service . com ( no spaces ) Click on Owner Guides