2009 Toyota Tundra Owners Manual - Page 535

4-3. Do-it-yourself maintenance Remove the filter cover. Pull the filter out of the filter outlet. n Cleaning method If the filter is dirty, clean by blowing compressed air through the filter from the downward side. Hold the air gun 2 in. (5 cm) from the filter and blow for approximately 2 minutes at 72 psi (500 kPa, 5.0 kgf/cm2 or bar). If it is not available, have the filter cleaned by your Toyota dealer. 508