2005 Toyota SiennaNovember 2, 2015it is a 2005 sienna that slips between second and third, what will it take to repair? Share Tweet Pinterest Keywords:Sienna 1 thought on “2005 Toyota Sienna” Freeautomechanic November 3, 2015 at 6:12 pm If the transmission fluid color is dark and burnt smelling, the fix would be to have the transmission rebuilt or replaced. If the color of the transmission fluid is clean and clear then you are probably looking at a failing shift solenoid. A transmission shop can scan for codes to determine what the issue is. Comments are closed.