Draining Procedure: Notes
WARNING: This page is about a different car, the 2008 Cadillac CTS. 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.
- Park the vehicle on a level surface.
- Remove the surge tank cap.
- Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
- Remove the air deflector. Refer to Front Air Deflector Replacement .
- Place a drain pan under the radiator.
- Insert a piece of clean flexible hose through the access hole in the cradle onto the radiator mounting pin.
- Slowly loosen the drain cock and drain the coolant into the drain pan. Do not completely remove the drain cock.
- Inspect the engine coolant for the following conditions:
- Discolored appearance-Follow the flush procedure. Refer to Flushing .
- Normal in appearance-Follow the Fill Procedure below.