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:
Securing a Child Restraint Designed for the LATCH System
Warning
If a LATCH-type child restraint is not attached to anchors, the child restraint
will not be able to protect the child correctly. In a crash, the child could be
seriously injured or killed. Install a LATCH-type child restraint properly using
the anchors, or use the vehicle safety belts ...
Parking Brake Adjustment (Drum Brake)
Note: The park brake cable adjusting nut is a nylon lock type. Use
ONLY HAND TOOLS whenever tightening or loosening the adjusting nut.
Apply and fully release the park brake several times. Verify that the park
brake lever releases completely.
Turn ON the ignition. Verify the red B ...
Power Steering System Description and Operation
The power steering system reduces the amount of effort needed to steer the vehicle.
The system uses the powertrain control module (PCM), body control module (BCM),
power steering control module (PSCM), discrete battery voltage supply circuit, steering
shaft torque sensor, steering wheel positi ...
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