disconect the coil and remove the 7mm bolt that holds down the coil, remove the coil then plug.
No spark plugs on a diesel
http://www.ford-trucks.com/article/idx/0/100/article/How_To_Change_Spark_Plugs_on_46__54_Liter_F150s.html
Start by changing the spark plugs
There is no such thing as a 2001 f250 351 Windsor. I believe the last year of the 351 overhead valve motor was 1996.
Ford uses Motorcraft Spark plugs on all there vehicles.
Check the Vehicle Emission 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
Check the Vehicle Emissions Control Information ( VECI ) decal located in the front of your engine compartment ( it will show the type of spark plugs to use and the spark plug gap )
Check the Vehicle Emission Control Information ( VECI ) decallocated in the front of your engine compartment ( it will show thetype of spark plugs to use and the spark plug gap )
Check the Vehicle Emission Control Information ( VECI ) decal located in the front of your engine compartment ( it will show the type of spark plugs to use and the spark plug gap )
fireing order ford 1994 e-250 econoline
I would look first to the rotor, and then maybe at the module check the ignition module
On the motor