Set of 2 New Engine Knock Sensor For 2004-2012 Toyota Sienna 2.7L 3.3L 3.5L

Engine Knock Sensors for Toyota

These engine knock sensors detect abnormal engine vibrations and detonation, sending signals to the engine control module to adjust ignition timing.

Overview

These engine knock sensors for Toyota detect pre-ignition knocking to protect your engine from internal damage. By monitoring combustion vibrations, these engine knock sensors provide the critical data your engine control module needs to optimize performance and fuel economy. They are essential for clearing knock sensor check engine lights and restoring smooth acceleration.

Built For Performance

• Includes a set of two sensors for a complete bank replacement
• Utilizes highly sensitive piezoelectric elements for accurate knock detection
• Constructed to resist extreme engine bay temperatures and vibrations
• Designed for direct plug connection to the factory wiring harness

Fits These Machines

• for Toyota Sienna 2.7L 2004 to 2012
• for Toyota Sienna 3.3L 2004 to 2012
• for Toyota Sienna 3.5L 2004 to 2012

On-The-Job Use

• Clearing diagnostic trouble codes associated with knock sensor failure
• Eliminating engine hesitation and pinging under heavy load conditions
• Restoring fuel efficiency and smooth engine timing during highway driving

Specs At A Glance

Good To Know

Q: Where are these knock sensors located on the engine? A: On V6 engines, they are typically located in the engine valley underneath the intake manifold. Q: Can a bad knock sensor cause poor gas mileage? A: Yes, when a sensor fails, the engine computer often retards ignition timing to protect the engine, which reduces power and fuel economy.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.