Chevrolet Sonic Repair Manual: Coolant System Flushing
Note:
- Do not use a chemical flush.
- Store used coolant in the proper manner, such as in a used engine coolant holding tank.
- Do not pour used coolant down a drain. Ethylene glycol antifreeze is a very toxic chemical.
- Do not dispose of coolant into the sewer system or ground water. This is illegal and ecologically unsound.
- Various methods and equipment can be used to flush the cooling system. If special equipment is used, such as a back flusher, follow the manufactures instruction. However, always remove the thermostat before back flushing the system.
- Apply the parking brake.
- Drain the coolant. Refer to Cooling System Draining and Filling.
- Fill the cooling system with clean drinkable water. Refer to Cooling System Draining and Filling.
- Start the engine and run at 2,000 RPM until the thermostat opens.
- Turn OFF the engine.
- Drain the coolant system. Refer to Cooling System Draining and Filling.
- Repeat the above procedure until the water from the coolant system is colorless.
- Drain the coolant system. Refer to Cooling System Draining and Filling.
- Repeat the above procedure until the water from the coolant system is colorless. Refer to Cooling System Draining and Filling.
Information
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Cooling System Description and Operation
Cooling System
The cooling system maintains the engine operating temperature at the efficient
level under any speed and operating condition. When the engine is cold, the
cooling system ...
Other materials:
Automatic Headlamp System
When it is dark enough outside and the exterior lamp control is in the automatic
position, the headlamps come on automatically. See Exterior Lamp Controls.
The vehicle has a light sensor on top of the instrument panel. Make sure it is
not covered, or the headlamps will be on when they are not ...
Headlining Trim Panel Replacement (Hatchback without Sunroof)
Headlining Trim Panel Replacement
Callout
Component Name
Warning: Do not attempt to repair or alter the head impact
energy-absorbing material glued to the headliner or to the garnish trims.
If the material is damaged ...
Seat Belt System Description and Operation
Restraint System
Note: If the vehicle has been in a collision, refer to Repairs
and Inspections Required After a Collision.
The vehicle has front and rear seat belts that are the primary means of occupant
restraint. Seat belts help to keep the occupants inside the passenger ...
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