Whoever wants to know, Lucky You. There are 6 spark plugs, 1, 2, 3 on the passenger side of the engine compartment, and 4, 5, 6 on the driver side. The plugs are seemingly buried under the engine and everything else, just above the headers, and are almost impossible to remove and exchange by yourself. Good luck.
( 4 ) for the 2002 Ford Ranger 2.3 L - DOHC engine
On a 2002 Ford Ranger : Check the Vehicle Emissions Control Information ( VECI ) decal in the front of your engine compartment . It will show the type of spark plugs used and the spark plug gap
On a 2002 Ford Ranger : The 2.3 liter Dual Over Head Cam four cylinder engine has ( 4 spark plugs )
The 2002 Ford Ranger in NORTH AMERICA has a 2.3 L DOHC four cylinder engine and the spark plugs are gapped at .044 inch
There are ( 6 ) spark plugs
Disconnect the battery, remove the spark plug cables and boot covers, and remove the old spark plugs. Next, put in the new spark plugs, reattach the boot covers and spark plug cables and reconnect the battery.
In a 2011 Ford Ranger : The 4.0 litre Single Over Head Cam , V6 engine has : ( 6 spark plugs )
On a 2005 Ford Ranger : The 2.3 liter Dual Over Head Cam , four cylinder engine has : ( 4 spark plugs )
There are ( 6 spark plugs ) on the Ford 4.0 liter V6 engine
The Ford 4.0 liter V6 engine has ( 6 spark plugs )
From the front of the engine, the spark plugs are numbered 1-2-3-4. The firing order is 1-3-4-2. - Haynes Repair Manual #36071, 1993-2005 Ford Ranger Pickups.
In a 2002 Ford Expedition : For the 4.6 or 5.4 liter V8 engines : (there are 8 spark plugs )