F 150 4WD Pickup V8-4.6L SOHC VIN W (1998)
Thermostat: Specifications
GENERAL SPECIFICATIONS
Water Thermostat Start to Open Temperature ......................................................................................................................... 86.7-90.6° C (188-195° F)
Water Thermostat Full Open Temperature ............................................................................................................................ 97.8-101.7° C (208-215° F)