Sienna AWD V6-3.3L (3MZ-FE) (2004)
Recommended spark plug:
d. Check the spark plug electrode gap.
Maximum electrode gap for used spark plug: 1.3 mm (0.051 in.)
If the gap is greater than maximum, replace the spark plug.
Correct electrode gap for new spark plug: 1.0 to 1.1 mm (0.039 to 0.043 in.)
e. Clean the spark plugs. If the electrode has traces of wet carbon, clean the electrode with a spark plug cleaner then dry it.
Air pressure: Blow 588 kPa (6 kgf/sq.cm, 85 psi)
Duration: 20 seconds or less
HINT: If there are traces of oil, remove it with gasoline before using the spark plug cleaner.