One problem related to engine oil leaking has been reported for the 2005 Toyota Sienna. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Toyota Sienna based on all problems reported for the 2005 Sienna.
First, I noticed some oil stains on my drive way, then I drove my minivan to a local Toyota car dealer for check up and routine oil change. Next day, I noticed a bigger oil stain. Anyway, I had an appoinment and have to drive my minivan to my dentist office, on the highway, I saw smoke came out of my front hood. Then, I drove it to the same Toyota dealer afterwards. It was quite scary driving and seeing smoke came out of my front hood especially with my young daughter on board today. At one moment, I thought my car will be on fire. On the paper, I was told that my leaking is from rack and pinion steering system. I called Toyota customer service, and the person who assisted me state his surprise of this rack and pinion leaking for such a low mileage car. I would like to file a mechanical damage report toward Toyota defective parts.