2007 Toyota Sienna engine problems
42 owner complaints filed with NHTSA name the engine on the 2007 Toyota Sienna — 12% of all complaints for this model year.
What owners report
“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…”
filed Mar 31, 2023
“The contact owns a 2007 Toyota Sienna. The contact stated while driving 40 MPH going up a curvy road, the ABS service warning light illuminated, and the vehicle lost motive power for several seconds before independently regaining motive power. The contact stated that the failure was intermittent…”
filed Dec 3, 2021
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Engine problems in other Sienna years
| Year | Reports | Share |
|---|---|---|
| 2022 Sienna | 5 | 4% |
| 2021 Sienna | 8 | 5% |
| 2020 Sienna | 6 | 17% |
| 2019 Sienna | 4 | 9% |
| 2018 Sienna | 5 | 7% |
| 2017 Sienna | 15 | 10% |
| 2016 Sienna | 4 | 5% |
| 2015 Sienna | 15 | 7% |
| 2014 Sienna | 11 | 7% |
| 2013 Sienna | 7 | 4% |
| 2012 Sienna | 9 | 4% |
| 2011 Sienna | 23 | 4% |
Other reported problem areas on the 2007 Toyota Sienna
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.