The manual states at 90,000 miles.
Factory recommends 90,000 miles.
You don't as it has a chain not a belt.
In a 2004 Toyota Highlander : The 2.4 liter four cylinder has a timing CHAIN and the 3.3 liter V6 has a timing BELT
Yes
In a 2004 Toyota Highlander : The 2.4 liter four cylinder engine has a timing CHAIN The 3.3 liter V6 engine has a timing BELT
The 2004 Toyota Highlander has 16 valves.
The 2004 Toyota Highlander is a gas-powered vehicle.
The 2004 Toyota Highlander has a 4-speed automatic.
The 2004 Toyota Highlander has an inline 4 engine.
The 2004 Toyota Highlander is 15'5" long.
The timing of a 2004 Toyota Sienna should at approximately 75,000 miles. Failure to replace the timing belt at the appropriate time can result in costly engine failure.
The 2004 Toyota Highlander has a 27 degrees angle of approach.
The 2004 Toyota Highlander has a 21 degrees angle of departure.