FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Thermostat: Specifications




Thermostat Opening Temperatures

Starts to open (4.0L) 90-94°C (194-201°F)
Fully Open (4.0L) 106°C (223°F)

Starts to open (4.6L) 86.7-90.63°C (188-195°F)
Fully Open (4.6L) 98.7-101.7°C (208-215°F)

Starts to open (5.4L) 80-84°C (176-184°F)
Fully Open (5.4L) 95°C (203°F)