Hi all,

I have a 2014 Range Rover L405 Vogue with the 4.4 engine. The car has developed a knocking/tapping noise coming from the top of the engine, on the left bank. Occasionally, there is also white smoke coming from the exhaust, though it’s not consistent.

The knocking sound is intermittent—it comes and goes, and when it does occur, sometimes it’s louder and other times barely noticeable. I used a stethoscope to try and diagnose the knock and found that the noise is most prominent around injectors 6 and 7.

No codes and EML is off

So far, I’ve had four injectors removed and tested—no issues found. I also removed the sensor from the high-pressure fuel pump to check for metal filings, but everything looked clean.

My next step is to remove the intake cover to inspect the rocker arms and other components in that area.

Does anyone have any idea what this could be? I’ve attached a video below—please note that the knocking sound in the video is amplified for some reason and sounds much louder than it does in real life.

Any input would be appreciated!

https://youtube.com/shorts/APsqrdwSR24

I think I'd get a borescope in the bores and have a look around. It sounds 'mechanical' to me.

Chris. L405 - 4.4SDV8 Vogue
P38 - 4.6V8 HSE
Land Rover series IIA V8

I wonder if it is the HPFP? It seems louder on the left but it is difficult to say if the video is not a true reflection of sound.

Has it been run down to a very low fuel level on a regular basis? 2012 Vogue TDV8 in Aintree green over sand

Remove the oil and check for silver particles.

The last one I had that sounded like that was because the bottom end bearings were on the way out. It

This was my first check—new oil and oil filter. I was looking for metal filings, but everything was clear. Sorry, I forgot to mention that in the first post