On a 1999 Ford Expedition , 5.4
firewall
4 - 8
3 - 7
2 - 6
1 - 5
front of vehicle
It has the Coil On Plug ( C.O.P. ) ignition system with ( 8 ) individual coils
The spark plug firing order is ( 1 - 3 - 7 - 2 - 6 - 5 - 4 - 8 ) Coil On Plug ( C.O.P. ) ignition system The engine cylinders / spark plug locations are numbered : firewall 4 - 8 3 - 7 2 - 6 1 - 5 front
The first model year of the full size Ford Expedition was ( 1997 ) 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 )
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No , the Ford 5.4 liter V8 engine has ALWAYS had the Coil On Plug ( C.O.P. ) ignition system with ( 8 ) individual coils In a 1997 Ford Expedition , the 4.6 liter V8 engine uses ( 2 ) coil packs and ( 8 ) spark plug wires
Inside the valve covers.
how to change spark plugs on a 2001 expedition
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In a Ford Expedition , Ford F-150 , 5.4 firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of vehicle
It should be the same as the small block.18436572.
check haynes manual "firing sequence" or "firing order"
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Where and how do you find the spark plugs for a 1997 ford expedition?