For the Ford 4.2 liter V6 engine :
If it is a rear wheel drive / 4x4 vehicle :
firewall
3 - 6
2 - 5
1 - 4
front of vehicle
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If it is a front wheel drive vehicle :
firewall
1-----2-----3
4-----5-----6
front of vehicle > driver
Number one cylinder is the cylinder on the far right (passenger side in US).
Passenger side, front cylinder.
passenger side of engine , front cylinder
# 1 is the front cylinder
Passenger side, first cylinder up front is number one.
P0301 is cylinder number one misfire detected.P0301 is cylinder number one misfire detected.
For your Ford 4.9 liter / 300 cubic inch inline six cylinder engine : ( the # 1 cylinder is at the FRONT of the vehicle )
The front passenger side cylinder is number one.
Passenger side, front of engine.
left hand side to the front
number one cylinder is always the right side front ie. passenger side closest to the radiator
The 2000 Ford Ranger firing order is 1-3-4-2. The number one cylinder is the one closest to the front.