Have the code read, that will tell you.
Disconnect battery for 15 - 20 mintues
On our crown Victoria we had an intermittent check engine light with the error codes "bank 1 and 2 too lean". I tried replacing the fuel filter with no luck. A short while later I had a intake manifold crack and had to get it replaced. My mechanic cleaned the MASS AIRFLOW SENSOR and this seemed to fix the check engine light.
To change the check engine light bulb on a 1996 Crown Victoria you need to remove the molding from around the instrument panel. Next, remove the headlight knob and shafts. Locate the light bulb and turn counterclockwise to remove. Reverse directions to replace with a new bulb.
get a scan OBD2
Do you have air suspension? If so, then something is leaking. Check out Strutmasters, in the net. They have solutions 4 u.
check for fuel or spark
When the check engine light is flashing , it means that an ignition misfire has been detected
No, I doesnt fit. Check the tail of the 1997 and there is a speed sensor. The 2003 doesnt have it.
Check the fan, check coolant level, water pump. Not enough air flow when the car is stopped.
Check at the battery with a volt meter, Should have over 14 volts when engine is running. If not, possibly have to replace the alt. or check all the wires.
On a 1996 Ford Crown Victoria : Check the Vehicle Emission Control Information ( VECI ) decal in the front of your engine compartment . That will indicate what type of Motorcraft spark plug to use and the spark plug gap