2017 Tundra Engine Knock Passenger Side

I have a 2017 SR5 Double Cab.
135,000 miles and always serviced at the dealer. Within this past month there is a knocking sound on the passenger side of the motor. I have the 3UR FE engine model. I also have an engine scanner and shows no active codes or “open DTC’s”.
This truck is my daily driver.

I’m open to any input you all may have of what you all think this knocking sound may be. Truck idles fine, starts great, but once the engine is at temp the knocking starts.

 

My 2018 with 118k miles has something similar. When engine is hot, there is a Rhythmic tic on passenger side while idling. I’ve had it or noticed it for about a year now. There doesn’t seem to be any performance issues associated with it. Running mobil 1 5w30 since 50k miles with 5k oil change intervals. Oddly enough, It goes away in the winter when the weather cools off.

 

That is a super vague description, could be exhaust leak, could be rocker arms, could be in the bottom end; take a video and post it

You said passenger side but where? The front by the fan? Back at the firewall? Underside of the engine?

 

Is it coming from passenger side firewall area? Theres a fat harness around there behind engine that vibrates and taps sometimes. Zip tie it

 

Get a mechanics stethoscope and start probing around to better locate its location.

 

Noise at the top and sounds like a damn diesel. Tried uploading a video however I get an error.

 

You can post it to YouTube and then send the link here, a lot of people have done that

 

Thanks for the suggestion.

Here is the video link
https://youtube.com/shorts/T0p2aSkaOvE?si=8keZe7vHuxn50s7f

 

Here is a video link to the engine knock.

https://youtube.com/shorts/T0p2aSkaOvE?si=QWPZUksR9d2WbRyy

 

I'd call it more of a tick than a knock. Sounds valve train related - no check engine light?

do you know the history on oil change intervals?

 

No check engine lights, used a scanner and no open DTC’s either. Change oil every 5000 miles. Truck is my daily driver.

 

My money is your lifters are bad. This is super common in the Hemi 5.7L V8. Typically once it starts you have about 20,000 miles to get it fix before it completely destroys the engine. Yours sounds really bad though so I would get it fixed asap. In a Hemi the repair is about $6-7K. With as expensive as trucks are today I would bight the bullet if that ends up being the problem.

 

Do you run 0-20 oil?

 

Yes …. 0 / 20 oil and a new oil filter.

 

Yeah I would also say it sounds like valve train noise, do you have an automotive stethoscope you can put on each section of the valve cover to identify it?

 

No. But I will be getting one today.

 

Sounds like a lifter not pumping up but I wouldn't rule out exhaust manifold leak after warm. Stethoscope will definitely help you isolate the noise.

Stuck lifter | Toyota Tundra Forum https://share.google/aH2JxwQ7OF1qFRy9z

 

Lifter noise. However seems to me there is another hollow noise, may be related to the lifter.....Yes get a mechanics stethoscope and check.