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Fuel Pressure - Trucks

WARNING: This page does not describe the selected car, but rather 29 other vehicles, including the 2006 Mercury Mountaineer, 2006 Mercury Monterey, 2006 Mercury Montego, 2006 Mercury Milan, and 2006 Mercury Mariner. However, it is still accessible from the selected car via links, so may be relevant.
2006 FUEL PRESSURE SPECIFICATIONS - TRUCKS

Engine KOER psi (kg/cm2 ) KOEO psi (kg/cm2 )
Econoline, Excursion, Mark LT & F150
Diesel (6.0L) 45-55 (3.2-3.9) (1) 0-55 (0-3.9) (1)
Diesel (6.8L) 55-65 (3.2-4.6) (1) 40-50 (2.1-4.2) (1)
Gasoline 28-45 (2.0-3.2) 35-45 (2.4-3.2)
Natural Gas Vehicle (2) 80-120 (5.6-8.4)
Escape, Escape Hybrid & Mariner 39 (2.7) 39 (2.7)
Expedition & Navigator 28-45 (1.9-3.2) 35-45 (2.4-3.2)
Explorer & Mountaineer 30-40 (2.1-2.8) 30-40 (2.1-2.8)
Freestar & Monterey (2) 35-70 (2.4-4.8)
Freestyle 40 (2.8) (3), (4) 40 (2.8) (3), (4)
F250, F350, F450, F550 Super Duty
Gasoline (5.4L & 6.8L) 28-45 (1.9-3.2) 35-45 (2.4-3.2)
Diesel (6.0L), Operating Fuel Line Primary Pump Pressure 45-55 (3.2-3.9) -
Diesel (6.0L), 45-55 (3.2-3.9) 0-55 (0-3.9)
Ranger 60-65 (4.2-4.6) 60-65 (4.2-4.6)
(1) Operating fuel line primary pump pressure.
(2) Information is not available from manufacturer.
(3) With a manual gauge, the fuel pressure will be lower.
(4) Based on 60°C (140°F) fuel rail temperature, at fuel rail temperatures above 60°C (140°F), for example hot starts, the fuel rail pressure increases based on temperature up to 448 kPa (65 psi).