Chevrolet Sonic Repair Manual: Cooling System Draining and Filling
- Draining Procedure
-
Warning:
To avoid being burned, do not remove the radiator
cap or surge tank cap while the engine is hot. The cooling system will
release scalding fluid and steam under pressure if radiator cap or surge
tank cap is removed while the engine and radiator are still hot.
- Remove the coolant pressure cap from the radiator surge tank.
- Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
- Remove the front compartment front insulator cover. Refer to Front Compartment
Front Insulator Cover Replacement.
- Place a drain pan under the drain cock.
- Loosen the radiator drain cock (1).
- Drain the cooling system.
- Lower the vehicle.
- Inspect the coolant.
- Follow the appropriate procedure based on the condition of the coolant.
- Normal in appearance—Follow the filling procedure.
- Discolored—Follow the flush procedure. Refer to Coolant System Flushing.
- Filling Procedure
-
Caution:
The procedure below must be followed. Improper coolant
level could result in a low or high coolant level condition, causing
engine damage.
- Raise and support the vehicle.
Caution:
Refer to Fastener Caution.
- Tighten the radiator drain cock (1) to 2 Y (18 lb in)
.
- Install the front compartment front insulator cover. Refer to Front
Compartment Front Insulator Cover Replacement.
- Lower the vehicle.
Note:
Use a 50/50 mixture of DEX-COOL antifreeze and clean
drinkable water.
- Slowly fill the radiator with a 50/50 coolant mixture until the coolant
level reaches the base of the radiator surge tank. Refer to Approximate
Fluid Capacities.
- Allow 30 seconds for the coolant level to stabilize and continue to
fill the coolant filler neck until the level stabilizes for at least 2 minutes.
- Start the engine and allow to the engine to idle in PARK or NEUTRAL
with the parking brake engaged.
- Slowly fill the coolant mixture until the level stabilizes at the base
of the radiator surge tank.
- Install the coolant pressure cap.
- Raise the engine RPM to 2500 rpm for 30?E0 seconds.
- Shut the engine OFF.
- Allow the engine to cool, remove coolant fill cap and repeat steps 4?E0
until the coolant level has completely stabilized within the radiator surge
tank.
- Inspect and if necessary, fill the coolant reservoir bottle as necessary.
- Rinse away any excess coolant from the engine and the engine compartment.
- Inspect the cooling system for leaks.
- Top off the radiator surge tank if necessary.
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 ...
Engine Coolant Air Bleed Hose Replacement
Callout
Component Name
1
Engine Coolant Air Bleed Hose Clamp (Qty: 2)
...
Other materials:
Overview (Radio with Touchscreen)
1. VOL
(Volume)
Press to decrease or increase the volume.
2. (Power)
Press and hold to turn the power on or off.
3. (Home Page)
Press to go to the Home Page. See Home Page (Radio with Touchscreen).
...
Front Side Door Window Regulator Replacement
Front Side Door Window Regulator Replacement
Callout
Component Name
Warning: Refer to Glass and Sheet Metal Handling Warning.
Preliminary Procedure
Remove the front side door window from the guide. Do Not remov ...
Manual Transmission Shift Lever and Selector Lever Cable Replacement
Removal Procedure
Remove the battery tray. Refer to
Battery Tray Replacement.
\i
Disconnect the shift lever and selector cable ends (1)
from the transmission shift lever and selector levers.
Pull the cable retainers (2) to release the shift
leve ...
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