.050 inch - according to www . motorcraft . com ( no spaces )
.054 is the gap for the Mercury Grand Marquis.
On a 1997 Mercury Grand Marquis : Check the Vehicle Emission Control Information ( VECI ) decal in the front of the engine compartment , for the type of spark plug used and the spark plug gap
.050 inch - according to www . motorcraft . com ( no spaces )
Remove the spark plug wire from your 2001 Mercury Grand Marquis. Remove the spark plug with a 5/8 deep well socket, white turning it to the left. Reverse the process to put in the new spark plug.
.054
You should have C.O.P. ( coil on plug) there are no wires.
Remove the coil on top of the plug, they are there.
54 thousands of an inch i think
Each spark plug has a coil on the top. Just remove the coil.
firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of Mercury Grand Marquis
need to know the spark plug gap for a 1979 Mercury Grand Marquis with 351 modified.
by disconnecting the coil or plug wire and the fuel injector connector also for that cylinder.