When I picked up the previa, the perspective of rebuild vs replace came to mind. With a blown head gasket, worn SADS couplers and unknown extent of possible damage to the internal of the motor, I decided to go all out and rebuild the whole motor. Since I could not do this at my apartment complex and if you understand the location and the amount of work this motor has, then you know that I would hate to change a head gasket on a high mileage motor and have something break down shortly after and have to go through the process again. When conversations about the rebuild vs replace come up, I always think like this: Time, Place, money (knowledge and resources as well). I dont have place, so I dont have the time. Knowledge on the previa motor, very low. I have novice mechanic skills, but not well versed. Resources, I feel I can be resourceful and have a way to get what I need (parts and services).But knowledge and resources can only take you so far if you are not working ...
This is about my Previa and 3rd gen Sienna. Parts and Ideas, rants and fixes.. Just documenting the process of these vans.