One problem related to engine cooling system has been reported for the 2008 Toyota Sienna. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Toyota Sienna based on all problems reported for the 2008 Sienna.
The contact owns a 2008 Toyota Sienna. The contact stated that white smoke appeared from the rear of the vehicle. The contact heard an abnormal noise coming from the engine, but no warning indicators illuminated. After driving the vehicle home, the contact noticed that oil spilled all over the driveway, hood of the vehicle, and the front passenger side tire. The vehicle was towed to the dealer who stated that the oil cooler supply line burst. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 74,000.