Chevrolet Sonic Repair Manual: Engine Coolant Thermostat Replacement (LUV)
- Removal Procedure
-
- Drain the cooling system. Refer to Cooling System Draining and Filling.
- Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement.
- Remove the engine coolant temperature sensor connector (1).
- Disconnect the radiator outlet hose connector (2) from the engine coolant thermostat and reposition. Refer to Radiator Outlet Hose Connector Replacement- Engine Side.
- Remove the water inlet pipe mounting fasteners (1).
- Remove the water inlet seal (3) and discard.
- Remove the thermostat (4).
- Installation Procedure
-
- Clean the sealing surface.
- Install the engine thermostat (4) into the water inlet pipe (2) with a NEW seal (3).
- Tighten the water inlet pipe mounting fasteners (1) to 9 Y (80 lb in)
.
- Install the radiator outlet hose connector (2) to the engine coolant thermostat. Refer to Radiator Outlet Hose Connector Replacement- Engine Side.
- Connect the engine coolant temperature sensor connector (1).
- Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement.
- Fill the cooling system. Refer to Cooling System Draining and Filling.
- After repairs, inspect cooling system for leaks.
Engine Coolant Thermostat Removal
Caution: Refer to Engine Coolant Thermostat Housing Caution.
Remove the 4 engine coolant thermostat bolts (3).
Remove the engine coolant thermostat assembly ...
Engine Coolant Thermostat Replacement (LUW)
Removal Procedure
Warning: Refer to Battery Disconnect Warning.
Disconnect the battery negative cable. Refer to Battery Negative Cable
Disconnection and Connection.
D ...
Other materials:
Immobilizer Operation
This vehicle has a passive theft-deterrent system.
The system does not have to be manually armed or disarmed.
The vehicle is automatically immobilized when the key is removed from the ignition.
The system is automatically disarmed when the vehicle is started with the correct
key. The key uses a ...
Sunroof Window Seal Replacement
Removal Procedure
Remove the sunroof window panel. Refer to Sunroof Window Replacement.
Remove the seal from the window panel frame by pulling the seal away
at one point and continuing around the perimeter of the frame.
Clean around the edge of the inside surf ...
Drive Range, Third Gear (Gen 2)
As vehicle speed increases and operating conditions become appropriate, the transmission
control module (TCM) processes input signals from the automatic transmission input
and output speed sensors, the throttle position sensor and other vehicle sensors
to determine the precise moment to comman ...
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