Good evening all,

I recently bought a 14 lx with low miles, After some research a lot seem have the diesel sound knock at low rpms. Attached is a video of the sound. Please let me know what your thoughts are.

 

Bad injector. See if it is throwing any codes. You can also try pulling the plugs and see if one is fouled or looks different than the others. That would be my first try for a DIY diag.

 

Are you using premium fuel?

 

Here we go again...

 

I was actually waiting for you to say that- lol

 

yea almost seems like a metal to metal sound? I would take that in to a good shop asap.

 

We're overdue for that bit of ignorance that happens here 2 to 3 times every year.

 

Any update?

 

sorry for the late response. I do not have any update yet due to being out of town. Thanks for the responses and will update when I find anything out.

 

Yes we are putting premium fuel in it.

 

Sounds good. I will be interested to know what is the resolution. Have you thought about checking a Tundra or Sequoia forum? they have the same engine.

 

Sound on the video sounds like an injector issue...dieseling but no knocking.

Tundra and Sequoia engines are not necessarily assembled 100% in Japan, nor are they guaranteed to have 100% Japanese parts as do the 200 series motors.

 

My Tundra started making the same noise after dealer changed the oil, it turned out it was too low, I did my own oil change and the sound when away.

 

That would suck! I would never ever go back to the dealer anymore.

 

any update on this?