FUEL PRESSURE - CARS
| Engine | KOER psi (kg/cm 2 ) | KOEO psi (kg/cm 2 ) |
| Crown Victoria & Grand Marquis |
| Gasoline | 25-40 (1.8-2.8) | 20-60 (1.4-4.2) |
| Focus | 55 (3.9) | (1) |
| Fusion & Milan |
| 2.3L | 57 (4.0) | (1) |
| 3.0L | 65 (4.6) | (1) |
| MKZ | 65 (4.6) | (1) |
| Mustang | 27-37 (1.9-2.6) | 35-70 (2.4-4.9) |
| Sable, Taurus & Taurus X | 65 (4.6) | 65 (4.6) |
| Town Car | 25-40 (1.8-2.8) | 20-60 (1.4-4.2) |
| (1) Information is not available from manufacturer. (2) With a manual gauge, the fuel pressure will be lower. (3) 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). |
| (1) | Information is not available from manufacturer. |
| (2) | With a manual gauge, the fuel pressure will be lower. |
| (3) | 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). |
2008 FUEL PRESSURE SPECIFICATIONS - CARS
FUEL PRESSURE - TRUCKS
| Engine | KOER psi (kg/cm 2 ) | KOEO psi (kg/cm 2 ) |
| Econoline |
| Diesel (6.0L) | 38-51 (2.7-3.6) | 0-51 (0-3.6) |
| Gasoline (4.6L, 5.4L ) | 28-45 (2.0-3.2) | 35-45 (2.4-3.2) |
| Gasoline (6.8L) | 55-65 (3.9-4.6) (1) | 40-50 (2.8-3.5) (1) |
| Edge & MKX | 65 (4.6) | (2) |
| Escape, Escape Hybrid, Mariner & Mariner Hybrid | 39 (2.7) | 39 (2.7) |
| 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) |
| Mark LT & Pickup |
| Diesel (6.4L) | 4-7 (.28-.48) | 4-7 (.28-.48) (3) |
| Gasoline (4.2L, 4.6L, 5.4L) | 28-45 (2.0-3.2) | 35-45 (2.4-3.2) |
| Gasoline (6.8L) | 28-45 (2.0-3.2) | 35-45 (2.4-3.2) |
| Ranger | 60-65 (4.2-4.6) | 60-65 (4.2-4.6) |
| (1) Measured by the fuel rail pressure (FRP) PID using the vehicle communication module (VCM) and integrated diagnostic system (IDS) with appropriate hardware, or equivalent scan tool. Mechanical gauge fuel pressure readings may vary from scan tool readings. (2) Information is not available from manufacturer. (3) After 30 seconds the fuel pump will shut off and the fuel pressure will begin to bleed down to 0 kPa (0 psi). |
| (1) | Measured by the fuel rail pressure (FRP) PID using the vehicle communication module (VCM) and integrated diagnostic system (IDS) with appropriate hardware, or equivalent scan tool. Mechanical gauge fuel pressure readings may vary from scan tool readings. |
| (2) | Information is not available from manufacturer. |
| (3) | After 30 seconds the fuel pump will shut off and the fuel pressure will begin to bleed down to 0 kPa (0 psi). |
2008 FUEL PRESSURE SPECIFICATIONS - TRUCKS