On a Ford Expedition , Ford F-150 :
The 4.6 ( and 5.4 ) liter V8 engine cylinder locations are numbered :
firewall
4 - 8
3 - 7
2 - 6
1 - 5
front of vehicle
passenger side of engine , front cylinder
Passenger side, front cylinder.
Passenger side, front of engine.
For your Ford 4.9 liter / 300 cubic inch inline six cylinder engine : ( the # 1 cylinder is at the FRONT of the vehicle )
It is the second one back on the passenger's side of the engine.
Passenger side, front of engine.
passenger side of engine , front cylinder
It starts on the side of the engine where the number one cylinder is. This varies by manufacturer, fore instance Chevrolet's number 1 is on the driver side Ford's number one cylinder is on the passenger side.
YES - passenger side of engine , front cylinder
FIREWALL 4 - 8 3 - 7 2 - 6 1 - 5 FRONT
On your 4.9 liter / 300 cubic inch straight six cylinder engine # 1 cylinder is at the front of the engine nearest the radiator
The location of number one cylinder depends on the manufacturer of the engine. For example, a Ford 302 and a Chevrolet 350 have number one cylinders on opposite sides.