Draining Procedure
WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the coolant pressure cap from the radiator surge tank.
- Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle
- Place a drain pan under the drain cock.
- Loosen the radiator drain cock (1). Refer to Radiator Drain Cock Replacement
- 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 Flushing
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.