Incident = On 1/19/11 My 2005 Prius began to shake while driving on surface streets. I pulled over checked the car but saw nothing that would cause the shaking. I then started the car and began to drive. The shaking started again like an unbalanced washer. I took the car to Hollywood Toyota. Toyota checked the car and indicated that 2 Spark plugs had gone bad and that 2 Ignition coils had shorted out. As a result the engine had carbon deposits and needed extensive cleaning. I have done all scheduled maintenance to Toyota specification... read full review »