If you own a 2004-2006 Toyota Sienna and are having the timing belt replaced, be aware that the passenger side engine mount bolts are often seized and will break during removal in the process of servicing the timing belt. This is more common if you live in an area with high road salt usage.
It is possible to remove the upper, mid, and lower bracket in once piece rather than break a bolt and be forced to replace the lower bracket and/or both bolts. Indicated is the bolt that most often seizes and breaks:
Sienna Engine Mount
CARspec offers, in the case of a seized mount discovered during timing belt replacement, the removal of the entire mount rather than breaking and replacing of the bolts and damaged mounts for a small amount of additional labor. This saves the owner money vs. replacing a damaged mount.
As Eden Prairie and Chanhassen’s independent Toyota and Lexus repair specialist we see this issue fairly often and a happy to be able to offer a solution cheaper than total mount replacement.
I have a seized bolt while replacing timing belt in 2004 toyota sienna. now I can’t pull out the engine mount bracket. I will appreciate if any one can find the solution. thanks
Gently lift the engine up from below, undo the mount at the passenger fender (a 14mm bolt). Loosen the three 12mm fasteners you have access to (one nut, two bolts). You won’t be able to remove the bolts yet – you remove them and the mount all at once. Using a long open ended 12mm wrench, work the remaining nut that is behind the seized mount half a turn at a time. Move the mount out bit by bit as the nut is loosened. Lifting the engine should give you enough room to totally remove the nut and pull the mount and two bolts out at once.
This is done from memory so the exact details might be off, but the key is lifting the engine and using that extra clearance to move the mount off as you loosen the nut that is hard to reach. The three mount pieces come out together like in the photo above.
Good luck!