Cobalt L4-2.4L VIN B (2006)
Radiator Drain Plug: Service and Repair
Drain Cock Replacement
Caution: With a pressurized cooling system, the coolant temperature in the radiator can be considerably higher than the boiling point of the
solution at atmospheric pressure. Removal of the surge tank cap, while the cooling system is hot and under high pressure, causes the solution
to boil instantaneously with explosive force. This will cause the solution to spew out over the engine, the fenders, and the person removing the
cap. Serious bodily injury may result.
Removal Procedure
1. Raise and support the vehicle.
2. Place a drain pan under the right side lower radiator mount.
3. Remove the radiator drain cock.
Installation Procedure
1. Install the radiator drain cock. Tighten the radiator drain cock by hand only.
2. Lower the vehicle.
3. Fill the cooling system.
