4.0 knock sensor

I’ve read probably 10-15 threads on here about replacing the knock sensor or the harness, the most recent thread I’ve seen was in 2017,, im curious if anyone has found a way since then to replace the harness without pulling the motor or heads.. how do you get around the 2 coolant pipes?

 

In one of those threads, I believe someone home-crafted a tool to address the coolant pipes.

Not sure how hard it might be to do this on a Tacoma 4.0L V6, but I went thru once on a '95 Isuzu Rodeo 3.2L V6. I pulled the coolant pipes. If you go this route, be sure to first source all necessary gaskets.

FSM in post #10 of this thread - download:

https://www.tacomaworld.com/threads/valve-cover-gasket-replacement-on-the-4-0-v6.540066/

 

There’s this thread.

https://www.tacomaworld.com/threads...p0333-diy-knock-sensor-harness-repair.547066/

 

I have removed the harnesss and one senors without removing coolant tubes. Gotta have small hands.

 

My daughter replaced mine for me on the driver's side. Small hands, tight space.

That being said; I did see a video where the guy cut the strap holding the 2 pipes together and removed the upper to get both sensors