immacul8cs

sound like a loud clock, usually happens when vehicle is warm--------sound like coming from the top of the engine bay

racer_65

No. Never heard such sound.

immacul8cs

it is like a loud ticking and whirring sound that is coming from the engine baye---sounds like coming from either the black pipes or underneath them

ljugete

I have heard some sounds in the engine compartment now and then, but nothing major and mainly when very cold or hot. Have it checked out anyhow.

Good Luck!

ltc

Spectacular in depth analysis.....perhaps you could try to be a BIT more specific?
Try using really complicated words....like lifter, tensioner pulley bearing, insufficient oiling due to clogged galley....

immacul8cs

it sounds like there is knocking right under the plastic cover which says 4.5 and also there is constant knocking coming from the bottom of the engine----tuck--tuck--tuck---tuck---tuck----the sound can be heard from the wheel wells while suv is idling

Shamus

The pump for the heating system is located in the drivers side wheel well - mine used to tick - they replaced it - it still ticked - then they decided it was normal. The lifters can be a bit noisey when cold or if you are low on oil - I would check your oil level.

INURGRL951

I don't know about the undercar sound but the one on the top could just very well be your injectors you are hearing.


costas

ljugete

Larry,

Thanks for your constructive critizism, but please keep your nose out of it if you have nothing useful to say.

EnigmaWmn

Now that you've mentioned knocking:

https://rennlist.com/forums/porsche-...ock-knock.html

rome

Does this describe the ticking you are hearing?:

https://rennlist.com/forums/showthre...ferrerid=34752

Dennis C

I've been out of town for a few days and unable to visit rennlist until now. I'm actually typing this on my iPhone. I forgot how entertaining the Cayenne forum can be.

immacul8cs

the sound comes only when the engine warms up then it is just tuck tuck tuck and it is coming from the centre of the engine and also from the top---right under the 4.5 cover----i will try to put it on you tube and post a link as i really need advice before taking to the stealer on monday and to be told---------it is normal----

immacul8cs

http://ca.youtube.com/watch?v=jKpGNIkV5MQ

there are 2 noises---one is the turrrrrrrrrrrrrrrrrrrrr

the other is the tuck tuck tuck

pls advise

immacul8cs

i just took the coils out and you bet that they are cracked-----will the dealer void my warranty if i took the coils out myself