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:
Driving on Snow or Ice
Drive carefully when there is snow or ice between the tires and the road, creating
less traction or grip.
Wet ice can occur at about 0°C (32°F) when freezing rain begins to fall, resulting
in even less traction. Avoid driving on wet ice or in freezing rain until roads
can be treated with sa ...
Cleaning Exterior Lamps/ Lenses, Emblems, Decals and Stripes
Use only lukewarm or cold water, a soft cloth, and a car washing soap to clean
exterior lamps, lenses and emblems. Follow instructions under "Washing the Vehicle"
previously in this section.
Lamp covers are made of plastic, and some have a UV protective coating.
Use only lukewarm wat ...
Front Disc Brake Pads Replacement
Removal Procedure
Warning: Refer to Brake Dust Warning.
Note: Always replace disc brake pads in axle sets.
Inspect the fluid level in the brake master cylinder reservoir.
If the brake fluid level is midway between the maximum-full point and
the minimum allowab ...
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