Table 1 shows 19 common engine and engine cooling related problems of the 2007 Toyota Sienna. The number one most common problem is related to the engine and engine cooling (17 problems). The second most common problem is related to the engine oil leaking (eight problems).
As a result of the transmission cooler being a part of the radiator system, the transmission cooler ruptured while driving causing immediate loss of power and the engine to overheat. This malfunction also caused coolant and transmission oil to contaminate the engine compartment as well as the Read details...
Driving 55mph on frwy, van started smoking in the rear and oil on back of van. Slowly drove short distance home and lights on dash came on upon arriving home. Oil leaked on street where we parked. Had mobile mechanic look at it. Oil cooler hose had burst. Read details...
The contact owns a 2007 Toyota Sienna. The contact stated that while driving approximately 55 mph, the check engine warning light illuminated. The contact checked the oil level and noticed it was low on oil. The contact added oil and the vehicle would not restart. Read details...