Engine Coolant Thermostat Housing Replacement LH2
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
.
- 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 (1) with thermostat from the engine front cover.
- Remove the thermostat (3) and seal ring (2) and discard the seal ring.
Installation Procedure
- Install a new seal ring (2) on the thermostat (3).
- Install the thermostat and new seal ring into the thermostat housing (1).
- Install the thermostat housing (1) with the thermostat (3) 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
.
- Fill the cooling system. Refer to
Cooling System Draining and Filling
.
Engine Coolant Thermostat Housing Replacement LC3
Removal Procedure
- Drain the cooling system. Refer to
Cooling System Draining and Filling
.
- Remove the air cleaner assembly. Refer to
Air Cleaner Assembly Replacement
.
- Remove the radiator hose from the thermostat housing. Refer to
Radiator Outlet Hose Replacement
.
- Remove the heater hose from the thermostat housing.
- Remove the thermostat housing bolts.
- Remove the thermostat housing (1) with thermostat (3), from the water housing.
- Remove and discard the seal ring (2).
- Remove the thermostat from the thermostat housing.
Installation Procedure
- Clean the thermostat housing and water housing sealing surfaces.
- Install the thermostat (3) to the thermostat housing (1).
- Install the NEW seal (2) to the thermostat housing.
- Install the thermostat housing (1) with the thermostat (3) and the seal (2) to the water housing.
Notice: Refer to Fastener Notice in the Preface section.
- Install the thermostat housing bolts.
Tighten
Tighten the thermostat housing bolts to 10 N·m (89 lb in).
- Install the heater hose to the thermostat housing.
- Install the radiator hose to the thermostat housing. Refer to
Radiator Outlet Hose Replacement
.
- Install the air cleaner assembly. Refer to
Air Cleaner Assembly Replacement
.
- Fill the cooling system. Refer to
Cooling System Draining and Filling
.