Tools Required
J 38185 Hose Clamp Pliers
Removal Procedure
- Drain the cooling system. Refer to
Cooling System Draining and Filling
.
- Remove the air outlet duct in order to gain access to the thermostat housing.
Refer to
Air Cleaner Inlet Duct Replacement
in Engine Controls - 4.6L (LH2).
- Remove the heater hose from the thermostat housing using a J 38185
.
- Remove the coolant radiator hose from the thermostat housing. Refer to
Coolant Bypass Hose Replacement
.
- Remove the thermostat housing bolts.
- Remove the thermostat housing with thermostat from the engine front cover.
- Remove the thermostat and seal ring and discard the seal ring.
Installation Procedure
- Install a new seal ring on the thermostat.
- Install the thermostat and new seal ring into the thermostat housing.
- Install the thermostat housing with the thermostat assembly to the engine
front cover.
Notice: Refer to Fastener Notice in the Preface section.
- Install the thermostat housing bolts.
Tighten
Tighten the thermostat housing bolts to 20 N·m
(15 lb ft).
- Position the radiator hose over to the thermostat housing and reposition
the clamp using the J 38185
.
- Install the heater hose to the thermostat housing using J 38185
.
- Install the air outlet duct. Refer to
Air Cleaner Inlet Duct Replacement
in Engine Controls - 4.6L (LH2).
- Fill the cooling system. Refer to
Cooling System Draining and Filling
.