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What engine does Toyota Sienna use?

The Toyota Sienna is a popular minivan known for its spaciousness, versatility, and reliable performance. At the heart of this vehicle is the engine that powers it, and in the case of the Toyota Sienna, it's a robust and efficient powertrain that delivers a smooth and comfortable driving experience.

The Engine Specifications

The Toyota Sienna is equipped with a 3.5-liter V6 engine that produces 295 horsepower and 263 lb-ft of torque. This engine is paired with an 8-speed automatic transmission, which helps to optimize fuel efficiency and provide responsive acceleration.

Key Features of the Sienna's Engine

Direct Injection: The Sienna's engine utilizes direct fuel injection technology, which improves combustion efficiency and helps to boost power output.

Variable Valve Timing: The engine's variable valve timing system adjusts the timing of the intake and exhaust valves, further enhancing performance and fuel economy.

Dual Overhead Camshafts: The Sienna's V6 engine features dual overhead camshafts, which help to improve airflow and contribute to the engine's overall efficiency.li>

These advanced engine technologies, combined with the 8-speed automatic transmission, allow the Toyota Sienna to deliver a smooth and responsive driving experience while also maintaining impressive fuel efficiency for a vehicle of its size and capabilities.

Powertrain Options and Configurations

The Toyota Sienna is available in both front-wheel-drive and all-wheel-drive configurations, depending on the specific model and trim level. The all-wheel-drive system, which is an available option, provides enhanced traction and stability in various driving conditions, making the Sienna a versatile choice for families and individuals with diverse transportation needs.

Overall, the Toyota Sienna's engine is a key component that contributes to the vehicle's reputation for reliability, performance, and efficiency, making it a popular choice among minivan buyers.

Does the 2025 Toyota Sienna have a V6 engine?

The 2025 Toyota Sienna LE Hybrid FWD has a 2.5L inline 4-cylinder engine. The 2025 Honda Odyssey EX-L has a 3.5L Earth Dreams Technology™ V6 engine.

What kind of engine is in the Toyota Sienna?

The Toyota Sienna uses a 2.5-liter four-cylinder engine combined with electric motors for a 245-horsepower hybrid powertrain, available in both front-wheel drive (FWD) and all-wheel drive (AWD) configurations. All trims are hybrid and use an electronically controlled continuously variable transmission (ECVT).

Engine: 2.5-liter, 4-cylinder, hybrid
Combined Horsepower: 245 hp
Drivetrain: Standard FWD, with available AWD
Transmission: Electronically controlled continuously variable transmission (e-CVT)

Which lasts longer, Toyota Sienna or Honda Odyssey?

Which lasts longer, the Toyota Sienna or Honda Odyssey? While both minivans are designed to last for a long time, the Honda Odyssey currently has a higher J.D. Power reliability rating than the latest Toyota Sienna to be rated,3, 4 which suggests that it may be able to last for longer.

What is the common problem with Toyota Sienna?

Common Toyota Sienna problems include issues with the sliding doors, cracking dashboards, and problems with the exhaust system. Older models are known for transmission failures, while the 2021 hybrid version has had specific issues with its 12V battery and a toe sensor for the sliding door. Depending on the model year, other reported problems include oil leaks and various issues with oxygen sensors.

This video discusses some top complaints about the 2025 Toyota Sienna, including issues with the second-row seats and hands-free sliding door: 1mPoodle DadYouTube · Jan 20, 2025
Common problems by category
This video highlights common problems with the sliding doors in the 2011-2020 Toyota Sienna models: 56s1A Auto: Repair Tips & Secrets Only Mechanics KnowYouTube · Jul 17, 2024

Doors: Electric sliding doors frequently malfunction due to faulty motors or cables, with the toe sensor on some models being inconsistent. The rear hatch can also get stuck.
Dashboard: Cracking dashboards are a recurring issue for many model years.
Transmission: Some older model years, particularly the 2004 and 2017 models, have reported significant transmission issues.
Engine: Problems like oil leaks from the front cover, faulty oxygen sensors, and check engine lights due to EVAP systems are noted. The 2005 model has been specifically linked to head gasket failures with coolant leaks and overheating.
Electronics: For hybrid models like the 2021, a common complaint is that the 12V starter battery is undersized and dies frequently. Some users have also reported issues with Android Auto connectivity and the wireless charging pad.
Exhaust: Issues with the muffler, catalytic converter, heat shields, and exhaust manifold, as well as leaks, have been reported.

This video explains some common issues with the 2011-2016 Toyota Sienna, including head gasket leaks: 57sThe Car Care NutYouTube · Aug 11, 2020
Before you buy

Check for leaks: Inspect for signs of oil and coolant leaks.
Test the doors: Make sure both sliding doors and the rear hatch open and close smoothly.
Inspect the dashboard: Look for any signs of cracking.
Verify transmission history: For specific models like the 2004 and 2017, pay extra attention to transmission performance.
Confirm a history of maintenance: Proper maintenance, especially regular oil changes, can help prevent certain engine issues like sludge buildup.

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.