Tools You'll Need:
* Drain pan: Large enough to hold several gallons of coolant.
* Wrench: The size needed to remove the drain petcock (usually a 1/2" or 9/16" wrench – check your manual).
* Gloves: To protect your hands from the coolant.
* Safety glasses: To protect your eyes from splashes.
* Funnel (optional): For refilling.
Procedure:
1. Locate the Drain Petcock: The radiator drain petcock is typically located at the bottom of the radiator, usually on the driver's side. It's a small valve. Your owner's manual will show you the exact location.
2. Position the Drain Pan: Place the drain pan under the radiator drain petcock.
3. Open the Drain Petcock: Carefully open the drain petcock using the appropriate wrench. Turn it counter-clockwise. The coolant will begin to flow out. Be cautious – it will be hot if the engine wasn't completely cool!
4. Drain Completely: Allow the coolant to drain completely. This may take some time.
5. Close the Drain Petcock: Once the coolant has stopped flowing, carefully close the drain petcock by turning it clockwise.
6. Open the Radiator Cap: Locate the radiator cap (usually on the upper radiator hose). Carefully open it slowly to release any remaining pressure. Again, be very careful – it can be hot and pressurized! The release of pressure will help ensure more complete draining.
7. Optional: Drain from the Engine Block: Some vehicles have a drain plug on the engine block as well. Consult your owner's manual to see if your Impala has one and how to access it. This will drain coolant from the engine block.
8. Replace the Radiator Cap: Once drained, carefully replace the radiator cap.
9. Dispose of Coolant Properly: Coolant is toxic and should be disposed of properly. Check with your local waste disposal facility or auto parts store for proper disposal methods. Many auto parts stores will accept used coolant for recycling.
Important Considerations:
* Coolant Type: Note the type of coolant used in your Impala (usually 50/50 mix of coolant and distilled water). This will be crucial for refilling.
* Refilling: After draining, you'll need to refill the system with the correct type and amount of coolant. Refer to your owner's manual for the correct capacity. Use a funnel to avoid spills.
* Air Bubbles: After refilling, run the engine to allow the coolant to circulate and remove any air bubbles. Check the coolant level and add more if necessary.
* Professional Help: If you're uncomfortable performing this task yourself, it's always best to take your vehicle to a qualified mechanic.
This information is for general guidance only. Always refer to your 2006 Chevy Impala owner's manual for specific instructions and safety precautions. Improperly draining or refilling your coolant system can damage your engine.
