Spark Plug Replacement Toyota and Lexus V6

How to replace the spark plugs and PCV valve and clean the throttle body on a 2005 Lexus ES330. This is the same procedure as the 1MZ-FE 3.0L and 3MZ-FE 3.3L Toyota Camry (2002-2006), Lexus ES300 / ES330 (2002-2006), Toyota Avalon (1999-2004), Toyota Solara (2004-2008), Toyota Sienna (2004-2006), Toyota Highlander (2004-2007), and Lexus RX330 (2004-2006).

It is a lengthy procedure but overall fairly easy to do if you are mechanically inclined.

It is necessary to remove the plastic intake plenum to reach the rear spark plugs. On the Highlander, Sienna and RX330, the wipers and windshield cowl must be removed to access the rear bolts.

NGK Iridium plugs are used and replaced at 192,000 Km or 120,000 miles.