Forget it. You would be better off replacing your vehicle with another vehicle.
Of course. Heck you could convert it to a diesel if you really wanted to.
Power Steering Fluid(warning: the previous answer was wrong)The 2004 Toyota Sienna (and all 2nd generation Siennas) do not use regular power steering fluid; instead, they use transmission fluid subject to the standards ATF Dexron II and III. This is explicitly stated in the owner's manual.
Just push the "MANUAL DOOR" switch at the vicinity of the dashboard at the left and above of the stereo ; it should lock-out the electrical and you can just open and close the door manually.
The 2001 Toyota Sienna is 6 ft. 1.4 in. (73.4 in.)12V front and 12V rear power outlet(s) wide.
The 2003 Toyota Sienna is 6 ft. 1.4 in. (73.4 in.)12V front and 12V rear power outlet(s) wide.
The 2002 Toyota Sienna is 6 ft. 1.4 in. (73.4 in.)12V front and 12V rear power outlet(s) wide.
How do you remove and replace the motor for the drivers side power window in a 2000 Sienna
The 2005 Toyota Sienna is 6 ft. 5.4 in. (77.4 in.)12V front and 12V cargo area power outlet(s) wide.
The 2009 Toyota Sienna is 6 ft. 5.4 in. (77.4 in.)12V front and 12V cargo area power outlet(s) wide.
The 2011 Toyota Sienna is 6 ft. 6.1 in. (78.1 in.)12V front and 12V cargo area power outlet(s) wide.
The 2014 Toyota Sienna is 6 ft. 6.1 in. (78.1 in.)12V front and 12V cargo area power outlet(s) wide.
The 2012 Toyota Sienna is 6 ft. 6.1 in. (78.1 in.)12V front and 12V cargo area power outlet(s) wide.