My Nissan Murano 2003 making noise

[longname]

Hi everyone, my MO 2003 starts making noise in the engine recently, I went to many dealerships but no one knows what's problem!!! Does anyone know?
Here is the video. My MO has exactly this noise

2003 Nissan murano engine ticking noise - YouTube

2003 Nissan murano engine ticking noise - YouTube

I tried to change the fuel damper( rear and front) but nothing changed at all...Can anyone help me please!!!

[KtG]

Has anyone pulled a valve cover and measured the clearance between the cam lobes and the lash caps?

Because that is what it sounds like.

[Pilgrim]

I hear clicking. If not fuel dampers, you might benefit from the same advice I gave in another thread - get an auto stethoscope and go around the engine to localize it.

Sounds louder near the back of the engine...could be a cam or lifter issue on the rear bank of the V-6.

[njjoe]

Is this a new noise? If not, could it simply be the normal noises made by the fuel injectors?

-njjoe

[johnn]

This noise is exactly noise from my 02 Nissan Altima 3.5SE V6 same engine with a 03-07 MO, this noise is come from the valves tapping. Used one bottle of a Lucas oil products heavy-duty oil stabilizer from Adavance auto Parts or Wal-Mart for your next oil change , this noise will go away after a couple hundred miles.

[Pilgrim]

Kinda hard to tell, but it's loud enough in contrast to the engine that I would say it's not normal FI noise.

[YeeMurano]

sounds like noisy valve lifters,
high mileage, long interval between oil changes, dirty fuel injectors, and a worn crankshaft could lead to this.
try using a higher octane gas, say 94, this might quiet down the noise.

[longname]

Thank you all of you for giving me advices. I tried to change heavy-duty oil, but it doesn't solve the problem. In addition, it's not a normal sound because it just start making noise recently and it's much louder than the engine sound that I had before.

[wallyj]

Hey I have the same issue, did you find out what the issue was