Does a 2011 Toyota Sienna have a timing belt or chain?
The 2011 Toyota Sienna uses a timing chain, not a timing belt. Specifically, the model year carries Toyota’s 3.5-liter V6 engine (2GR-FE), which drives its camshafts with a chain rather than a belt.
Engine and timing system overview
Maintenance implications and reliability
What owners should know
Summary
How do I know if my van has a timing belt or chain?
If it has plastic covers on the front, it runs a timing belt because the timing belt runs dry and does not need more protection. However, if it has a sealed metal cover (to prevent the engine oil from leaking) then it is a chain system.
Does a 2011 Toyota have a timing belt or chain?
2011 Camrys didn't use a timing belt. They have a timing chain. 150K is nothing for a Toyota engine. But the fact that the timing chain is worn out leads me to believe that someone (no names) hasn't been changing their oil regularly.
What year to stay away from Toyota Sienna?
The Toyota Sienna years to generally avoid are the 2004, 2005, 2007, 2008, 2011, and 2017-2018 models due to common issues like sliding door problems, transmission troubles, and engine/suspension concerns. While many Siennas are reliable, these specific model years have more reported complaints and recalls.
Model years to avoid
- 2004: This first year of the second generation had the most owner complaints, particularly for sliding door issues.
- 2005: This year is associated with problems such as a faulty automatic sliding door and climate control issues.
- 2007: The 2007 model is often cited for engine and transmission problems, as well as recall issues with the transmission shift lever assembly.
- 2008: Common problems include minor electrical issues and airbag/seat belt concerns.
- 2011: This model year is known for premature suspension wear and engine problems, including stalling and rough idling.
- 2017-early 2018: The 8-speed transmission in these models has been linked to issues like whining, jerky operation, and oil leaks.
Other considerations
- Some sources suggest avoiding the 2006 model due to problems like failed oxygen sensors and sludge buildup, though it is still considered reliable overall.
- While the 2011-2016 models with the 6-speed transmission are generally considered reliable, the 2017-2018 models with the 8-speed transmission are the ones to approach with caution due to transmission problems.
- Regardless of the model year, it's always wise to get a pre-purchase inspection from a trusted mechanic before buying any used car.
What year do Toyota Siennas have timing chains?
The Toyota Sienna has a timing chain starting with the 2007 model year. Sienna models from 1998 to 2006 used a timing belt, while models from 2007 onwards with the 3.5L V6 engine have a timing chain, which is designed to last the vehicle's lifetime.
- 2007 and newer: Use a timing chain. This is part of the 3.5L V6 engine that was introduced in 2007.
- 1998–2006: Use a timing belt.
