I had the same problem on my 2002 Ford Explorer, after I replaced the gas cap the light turned off
On a 1997 Mercury Mountaineer : The " CHECK ENGINE " warning light is just to the left of the battery voltage gauge
On a 2002 Mercury Mountaineer : The " check gage " light comes on if the engine coolant temperature is too high , the engine oil pressure is too low , or the gas gauge is at or near empty
Take it to a reputable tranny guy...mine needed a new solenoid pack...about $600
my check engine light stays on and the o/d light blinks....what could this mean?
The check " gage " light on in your 1997 Mercury Mountaineer indicates that either your engine oil pressure is LOW , your engine temperature is HIGH or your gas tank is AT OR NEAR EMPTY .
An engine misfire has been detected
Try disconecting the battery for 5 min.s and reconecting.
An ignition misfire has been detected
check brake fluid level.
If the check engine light is blinking that means that an engine cylinder misfire has been detected
had to replace the battery in my 2002 Mercury Mountaineer but now the theft light is blinking, it is cranking up. How can I stop it?
The door ajar light might stay on in a Mercury Mountaineer if a door is not shut properly. Sometimes a door will seem like it is shut, but will not be shut enough to trip the light off. Check for dirt or other debris in the door latch for all doors.