Likely Needed (for a basic tune-up):
* Spark Plugs: These are crucial for ignition. You'll need the correct type and heat range for your specific engine. Check your owner's manual or a parts store website using your VIN to confirm.
* Spark Plug Wires (or Ignition Coils): The 2006 Impala may use either spark plug wires or individual ignition coils, depending on the engine. Wires are less common on newer vehicles. If it uses coils and they aren't showing signs of wear, replacing them isn't usually part of a routine tune-up.
* Air Filter: This filter cleans the air going into the engine. It should be replaced regularly, as part of routine maintenance, even if not strictly a "tune-up."
Potentially Needed (depending on condition and your definition of tune-up):
* Fuel Filter: This filters impurities from the fuel. Replacement intervals vary, but it might be due around the same time as a tune-up.
* PCV Valve (Positive Crankcase Ventilation): This valve helps ventilate engine crankcase gases. It can become clogged and should be inspected and replaced if necessary.
* Throttle Body Cleaning: While not a part replacement, cleaning the throttle body can improve engine performance.
* Sensor Cleaning/Replacement: Various sensors (MAF sensor, etc.) can affect engine performance. If you're having issues, they may need cleaning or replacement. However, this is more of a diagnostic and repair procedure than a standard tune-up.
Things generally NOT included in a modern tune-up:
* Distributor Cap and Rotor: These are not typically found in modern engines like those in the 2006 Impala.
* Points and Condenser: These are obsolete technologies.
Before you buy anything:
1. Consult your owner's manual: It will specify recommended replacement intervals for parts and may detail specific part numbers for your vehicle.
2. Check your engine: Visually inspect components like spark plug wires and the air filter. This will help you determine what needs replacing.
3. Use a reputable parts store: Provide them with your VIN to ensure you get the correct parts for your specific Impala.
Remember, a "tune-up" is a somewhat subjective term nowadays. Focus on replacing worn parts and addressing any issues that are impacting your engine's performance. If you're unsure about anything, consult a qualified mechanic.
