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Home >> Chevrolet >> 2001 >> Cavalier LS, 2.2 4 >> Repair and Diagnosis >> External Pages >> Different car >> Section 225 (Engine Cooling System - 2.2L (L61)) >> Repair Instructions >> Draining and Filling Cooling System (L61) >> Draining Procedure

Draining Procedure

WARNING: This page is about a different car, the 2004 Pontiac Sunfire and 2004 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
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.
  1. Remove the coolant pressure cap.
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  3. Place a drain pan under the drain cock.
  4. Open the radiator drain cock.
  5. Drain the cooling system.
  6. If a complete engine block drain is required, remove the engine block drain plug.
  7. Inspect the engine coolant for the following:
    • Discolored - follow the flush procedure. Refer to Flushing .
    • Normal in appearance - follow the filling procedure.
    • If a complete block drain is required, remove the water pump drain plug.
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