F 150 2WD Pickup V8-5.4L SOHC VIN 3 (1999)
Thermostat: Service and Repair
Removal
1. Partially drain the cooling system.
2. Remove the upper radiator hose.
3. Remove the water outlet connection.
1
Remove the bolts.
2
Remove the water outlet connection.
4. Remove the (A) water thermostat and the (B) O-ring.
-
Discard the (B) O-ring.
Installation
1. Use a new (A) O-ring to position the (B) water thermostat in the (C) upper intake manifold.
