( 3 - 1 )
( 2 - 4 ) spark plug wires from coil to passenger side sparkplugs ( exhaust )
===========================================================
( 4 - 2 )
( 1 - 3 ) spark plug wires from coil cross over top of engine to driver side sparkplugs
( intake )
front of engine
============================================================
The engine cylinders / spark plugs are numbered 1 to 4 , from front to rear
The spark plug firing order is ( 1 - 3 - 4 - 2 )
Yes, when changing spark plugs it is a good idea to change all eight so the firing will be even.
There are ( 6 ) spark plugs
The 1999 Ford Ranger 2.5L I4 engine has eight spark plugs because it utilizes a dual-spark ignition system. This design features two spark plugs per cylinder, which helps ensure more complete combustion and improves engine efficiency and performance. The dual-spark setup enhances cold starting, reduces emissions, and promotes smoother engine operation.
On a 2002 Ford Ranger : The 2.3 liter Dual Over Head Cam four cylinder engine has ( 4 spark plugs )
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 three engines available. If it's a 6 cylinder engine, 6 spark plugs. If it's the 4 cylinder engine, 8 spark plugs.
( 8 spark plugs ) for your 2001 Ford Ranger 2.5 liter 4 cylinder ( with Fords twin plug ignition system )
4-cylinders have four spark plugs, 6-cylinders have six spark plugs, 8-cylinders have eight spark plugs, etc, etc, etc
Do this one plug at a time, and reconnect that wire so as to not get wires mixed up. REMOVAL Remove spark plug wires from spark plugs with a Spark Plug Wire Remover tool, pull outward on the boot with a slight side-to-side twist. Loosen spark plugs and remove any dirt or foreign material from spark plug areas of cylinder head with compressed air. Remove spark plugs. INSTALLATION Inspect and adjust spark plugs. Spark Plug Gap: 0.042" to 0.046". Install spark plugs. Tighten spark plugs to 9-20 N.m (7-15 lb in). Connect spark plug wires to spark plugs.
The Ford 4.0 liter V6 engine has ( 6 spark plugs )
There are ( 6 spark plugs ) on the Ford 4.0 liter V6 engine