Chevrolet Sonic Repair Manual: Engine Coolant Thermostat Replacement (LUW)
- Removal Procedure
-
- Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection.
- Drain the coolant. Refer to Cooling System Draining and Filling.
- Disconnect the engine wiring harness connector (1) and retainers (2).
- Remove the wiring harness bracket nut (3) and bracket (4).
- If equipped, disconnect the thermostat heating element sensor (1) and remove the radiator inlet hose (2).
- Remove the thermostat housing retaining bolts (1).
- Remove the thermostat (1) and discard the seal (2).
Warning:
Refer to Battery Disconnect Warning.
- Installation Procedure
-
- Fit the thermostat (1) to the thermostat housing using a NEW seal (2).
- Install the thermostat (2) and tighten the thermostat bolts (1) to
10 Y (89 lb in)
.
- Install the radiator inlet hose (2) and connect the thermostat heating element sensor (1).
- Install the wiring harness bracket (4) and tighten the nut (3) to
10 Y (89 lb in)
.
- Connect the engine harness connector (1) and harness retainers (2) to the bracket.
- Refill the engine cooling system. Refer to Cooling System Draining and Filling.
- Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection.
- Start the engine and check for coolant leaks.
Caution:
Refer to Fastener Caution.
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.
...
Engine Coolant Thermostat Housing Installation
Caution: Refer to Engine Coolant Thermostat Housing Caution.
Clean sealing surface.
Install a NEW engine coolant thermostat housing seal.
Install the engine coolant thermosta ...
Other materials:
Adding Equipment to the Airbag-Equipped Vehicle
Adding accessories that change the vehicle's frame, bumper system, height, front
end, or side sheet metal may keep the airbag system from working properly. The operation
of the airbag system can also be affected by changing any parts of the front seats,
safety belts, the airbag sensing and ...
Repairing Damaged Wire Insulation
If the wire insulation has been chafed, or broken, enough to show the conductive
portion of the wire, and the wire is not damaged, determine the length of insulation
that needs to be repaired. If the repair is less than 280?€‰mm (11?€‰in), cut the
wire within the damaged area. Then sli ...
Engine Front Cover with Oil Pump Replacement
Removal Procedure
Disconnect the battery negative cable. Refer to Battery Negative Cable
Disconnection and Connection.
Set the engine to TDC. Refer to Camshaft Timing Chain Inspection.
Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
Remove ...
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