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General Specifications

WARNING: This page is about a different car, the 2009 Ford RV Cutaway, 2009 Ford Econoline, 2009 Ford E450 Super Duty, and 2009 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
GENERAL SPECIFICATIONS

Item Specification
Pressure Tests 
Complete cooling system maximum pressure Use individual readings listed on the pressure relief cap
Pressure relief cap Use individual readings listed on the pressure relief cap
Radiator (out of vehicle) 138 kPa (20 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 requirements(1) -
Maximum speed requirements(1) -
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)
(1) Refer to the INTRODUCTION - GASOLINE MODELS article or INTRODUCTION - 6.0L DIESEL - E-SERIES article.