On a 1997 Mercury Mountaineer :
The " CHECK ENGINE " warning light is just to the left of the battery voltage
gauge
An engine misfire has been detected
what does a insufficient coolant temperature for closed loop fuel control mean and what can i do to fixs it on a mercury mountaineer 1997 engine is a 5.0
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 .
On a 1997 to 2001 Mercury Mountaineer : Check the Vehicle Emissions Control Information ( VECI ) decal located in the front of your engine compartment . It shows what type of spark plug to use and the spark plug gap
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
If the check engine light is blinking that means that an engine cylinder misfire has been detected
Try disconecting the battery for 5 min.s and reconecting.
An ignition misfire has been detected
my check engine light stays on and the o/d light blinks....what could this mean?
Check the Vehicle Emission Control Information ( VECI ) decal located in the engine compartment ( it will show what type of spark plugs to use and the spark plug gap )
In a 2003 Mercury Mountaineer, the PCV (Positive Crankcase Ventilation) valve is located on the driver's side of the engine. It is typically found on the valve cover, connected to a rubber hose that leads to the intake manifold. You may need to remove the engine cover or other components for easier access. Be sure to check the vehicle's service manual for specific details and diagrams.
Check the Vehicle Emissions Control Information ( VECI ) decal located in the front of the engine compartment ( it will show what type of spark plugs to use and the spark plug gap )