2012 LR4 - Ticking saga...

[nolift911]

So I have owned 3 Rovers with the 5.0 motor...none have been as noisy as this one...rhythmic tic, tic, tic varying in speed with the RPM's. Have had the timing chains done to take that out of the equation...not much change in the tick. Trying to get information on the fuel pump cam follower but not much out there or how to remedy...do these things have noisy lifters? Just never had a motor make suck a racket while idling. Motor just turned 100k.

Suggestions?

 

[ktm525]

Which other Rovers?

 

[nolift911]

2010, 2011 LR4, 2015 Range Rover SC

 

[ktm525]

and louder ticking than the 10 and 11?

 

[nolift911]

Yes - much louder.

 

[Jimmy Brooks]

Would it be the injectors?

 

[nolift911]

Not sure - do they make rhythmic noises with RPM'S...? I have heard some engine injectors make a pulse/quick ticking noise...this sounds more metal on metal to me.

 

[ktm525]

film it please

 

[PaulLR3]

Could it be the cooling fan? Technician described it as a "bad fan clutch" and once replaced the additional noise was gone.

 

[John Robison]

We have found a lot of variation chain noise in these engines. Often when people have chain repairs done the shops take a shortcut and change only the tensioners. It is also common for shops to change the two cam chains and leave the shorter chain to the high pressure pumps, because that requires engine removal. We have seen a number of these trucks that had budget cam repair, where the whole job had to be done over because the shortcuts left a noisy motor. I'm not saying that is your problem, because I have not heard your motor, but it is a possibility.

As others have suggested there is also injector noise and other mechanical noises from the belt driven accessories