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Fuel Pressure - Trucks

2007 FUEL PRESSURE SPECIFICATIONS - TRUCKS

Engine KOER psi (kg/cm2 ) KOEO psi (kg/cm2 )
Econoline
Diesel (6.0L) 38-51 (2.7-3.6) (1) 0-51 (0-3.6) (1)
Gasoline (6.8L) 55-65 (3.2-4.6) (1) 40-50 (2.1-4.2) (1)
Gasoline (4.2L, 4.6L, 5.4L) 28-45 (2.0-3.2) 35-45 (2.4-3.2)
Mark LT & Pickup
Diesel (6.0L) 45-55 (3.2-3.9) (1) 0-55 (0-3.9) (1)
Gasoline (6.8L) 55-65 (3.9-4.6) (1) 40-50 (2.1-4.2) (1)
Gasoline (4.2L, 4.6L, 5.4L) 28-45 (2.0-3.2) 35-45 (2.4-3.2)
Escape, Escape Hybrid, Mariner & Mariner Hybrid 39 (2.7) 39 (2.7)
Edge & MKX 65 (4.6) (2)
Expedition & Navigator 65-71 (4.6-4.8) 62 (4.3)
Explorer & Mountaineer 30-40 (2.1-2.8) 30-40 (2.1-2.8)
Explorer Sport Trac 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)
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).