Crankcase Pressure Test - F-Super Duty/Excursion
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2005 Ford RV Cutaway, 2005 Ford Pickup, 2005 Ford F550 Super Duty, 2005 Ford F450 Super Duty, and 2005 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.
- Measure the pressure at the oil fill tube with 6.0L Crankcase Pressure Tester 303-758, with the engine at 70°C (158° F) minimum.
- Block the breather tube on the left valve cover.
- Measure with no load at 3,000 RPM.
| Instrument | Specification. | Measurement |
|---|---|---|
| 0-112 mm Hg (0 to 60 H2 O) Magnehelic® gauge | Less than 15 mm Hg (8 H2 O) |
If greater than 15 mm Hg (8 H2 O), refer to ENGINE - 6.0L DIESEL .