Toyota Sienna
engine Problems
We don't have a lot of Toyota Sienna engine problems on file — feel free to add yours here. The most common Sienna engine problems cost $6,500 to fix & occur at 60,000 miles.
The worst model years for engine problems are the 2007 Sienna, 2004 Sienna, and the 2011 Sienna.
Worst Toyota Sienna Engine Problems
-
#1: Valve Cover Gasket Leaking Oil 2015 Sienna
- Average Cost to Fix:
- $2,000
- Average Mileage:
- 45,000 mi
-
#2: Sudden Unintended Acceleration 2004 Sienna
- Average Cost to Fix:
- $8,500
- Average Mileage:
- 71,000 mi
-
#3: Engine Sludge 2004 Sienna
- Average Cost to Fix:
- $9,000
- Average Mileage:
- 65,000 mi