Chevrolet Sonic Repair Manual: Engine Coolant Thermostat Housing Replacement (LUW)
- Removal Procedure
-
- Remove the battery tray. Refer to Battery Tray Replacement.
- Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
- Drain the cooling system. Refer to Cooling System Draining and Filling.
- Disconnect the engine harness connector (1) and harness fasteners (2)
from the engine harness bracket, attached to the thermostat housing.
- Disconnect the throttle body heater inlet hose (1) and the electrical
connectors (2) from the thermostat housing.
- Remove the engine harness bracket nut (3) and bracket (4) from the thermostat
housing.
- Remove the radiator inlet hose (2) from the engine coolant thermostat
housing.
- Remove the heater outlet hose from the engine coolant thermostat housing.
Refer to Heater Outlet Hose Replacement.
- Remove the heater inlet hose from the engine coolant thermostat housing.
Refer to Heater Inlet Hose Replacement.
- Remove the engine oil cooler outlet pipe bolts (1).
- Remove the engine oil cooler outlet pipe (2) from the engine coolant
thermostat housing.
- Remove the engine coolant thermostat housing mounting bolts (1) and
discard the seal (2).
- Remove the engine coolant thermostat housing (3) from the engine.
- Installation Procedure
-
- Clean the sealing surface.
- Install a NEW engine coolant thermostat housing seal (2).
- Loosely install the engine coolant thermostat housing mounting bolts (1).
Caution:
Following the proper fastener tightening sequence
and torque is essential. Failure to do so may fracture the thermostat
housing.
Caution:
Refer to Fastener Caution.
- Tighten the 4 engine coolant thermostat housing bolts to 8 Y (71 lb in)
in sequence (1?E?E?E).
- Install NEW engine oil cooler pipe seals (4, 7).
Note:
Push the engine oil cooler pipe into the engine oil
cooler.
- Install the engine oil cooler pipe (5).
- Install the 2 engine oil cooler pipe bolts (6) and tighten to 8 Y
(71 lb in)
.
- Install the heater inlet hose to the engine coolant thermostat housing.
Refer to Heater Inlet Hose Replacement.
- Install the heater outlet hose to the engine coolant thermostat housing.
Refer to Heater Outlet Hose Replacement.
- Connect the electrical connectors (2) to the engine coolant thermostat
housing.
- Install the throttle body heater inlet hose (1) to the engine coolant
thermostat housing.
- Install the engine coolant thermostat housing bracket (4) and nut (3)
and tighten to 6 Y (53 lb in)
.
- Install the radiator inlet hose (2) to the engine coolant thermostat
housing.
- Fill the cooling system. Refer to Cooling System Draining and Filling.
- Install the battery tray. Refer to Battery Tray Replacement.
- Start the engine and check for coolant leaks.
Caution: Refer to Engine Coolant Thermostat Housing Caution.
Remove the engine coolant thermostat housing retainer nut (4).
Remove the engine coolant thermostat housing ...
Caution: Refer to Engine Coolant Thermostat Housing Caution.
Clean the engine coolant sealing surfaces.
Install the engine coolant seal (1).
Install the engine coolant ...
Other materials:
Engine Flywheel Replacement
Engine Flywheel Replacement
Callout
Component Name
Preliminary Procedure
Remove the clutch pressure and driven Plate . Refer to Clutch Pressure
and Driven Plate Replacement.
Special Tools
EN-652 Flywheel Holder
...
Hydraulic Valve Lash Adjuster Replacement
Hydraulic Valve Lash Adjuster Replacement
Callout
Component Name
Preliminary Procedures
Remove the hydraulic valve lash adjuster arms. Refer to Hydraulic Valve
Lash Adjuster Arm Replacement.
1
H ...
Low and Reverse Clutch Assembly and Low and Reverse Clutch Plate Installation
Low and Reverse Clutch Assembly and Low and Reverse Clutch Plate Installation
Callout
Component Name
1
Low and Reverse Clutch Assembly (OWC)
Note:
The Low and Reverse Clutch Assembly should rotat ...
В© 2014-2025 Copyright www.csmans.com
0.0081