General Specifications
GENERAL SPECIFICATIONS
| Item | Specification |
|---|---|
| Cooling System Pressure Test Specifications | 89-124 kPa (13-18 psi) held for 2 minutes without pressure drop |
| Radiator Cap Pressure Test Specifications | 89-124 kPa (13-18 psi) |
| Viscous Fan Clutch Test Specification - 4.6L, 5.4L and 6.8L | |
| Minimum speed requirements | 1,600 RPM |
| Maximum speed requirements | 2,300 RPM |
| Electronic Fan Clutch Test Specification - 6.0L Diesel | |
| Minimum speed requirementsa | - |
| Maximum speed requirementsa | - |
| Thermostat Opening Temperature - 4.6L, 5.4L | |
| Starts to open | 86.7-90.6°C (188-195°F) |
| Fully open | 100°C (212°F) |
| Thermostat Opening Temperature - 6.0L | |
| Starts to open | 87-91°C (189-196°F) |
| Fully open | 104°C (219°F) |
| Thermostat Opening Temperature - 6.8L | |
| Starts to open | 83-87°C (181-189°F) |
| Fully open | 99°C (210°F) |
a Refer to the Powertrain Control/Emissions Diagnosis (PC/ED) article.