Where is the Knock Sensor located?

2001 TOYOTA HIGHLANDER
165,000 MILES • 3.0L • V6 • 4WD • AUTOMATIC
Avatar
PAUL KREMER
  • MEMBER
  • 47 POSTS
Hello guys, I washed the engine space and parked my car for about two weeks after I drove about 150 km and the engine light was on. Computer is showing knock sensor 2 has problem. I just want to know the location of sensor 2? I believe there’s just bad connection from water and I will check it. If the sensor is bad, can I just connect to wires together, short cut?
Thank you for your help.
With best wishes,
Paul
Image (Click to enlarge)
Attached Media
Mar 17, 2025 at 10:34 AM
Advertisement
Avatar
STRAILER
  • ✓ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
Yep, this happens all the time, I would replace the knock sensor wiring lead as well, I believe it comes with the new sensor if you buy OEM. The knock sensor is below the intake manifold which will need to be removed, the location of the sensor invites the water damage FYI. Below is help to remove the intake so you can get to it. Check out the images (below). Please let us know what happens.

Images (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Mar 17, 2025 at 1:34 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.