I know there has been probably a good couple thousand of these threads. But please do bare with me.

I'm used to driving a really crappy 1996 Dodge Dakota, it made all sorts of very bad sounds. So any sound I hear on my Z, I get extremely paranoid. I recorded a few videos regarding the 2 sounds that I'm hearing. I know video aren't a definitive source. But I'm just hoping for some basic input from experienced Z owners.

The clicking sound, I've read all sorts of things regarding that. But from I gather, the clicking sound, regardless of the issue, isn't an issue at all. The slight knocking/thumping sound is my concern.

During cold starts(@26F and below) I hear the knocking/thumping sound on the right side of the engine, towards the upper back side. When the engine is nice and warm and has been driven, I hear the sound same area, but more present underneath. It will also idle, what seems to be in my opinion, roughly, and when I'm against a wall, like at a drive-thru, the engine seems loud, kind of embarrassingly loud. Is that normal?

Once again, I'm used to driving a really crappy truck, so I just want to be sure I'm not being overly paranoid/protective of my car. Thank you!

Also! I don't think I did a very good job explaining the issue in the video, I'm sort of retarded on camera haha, so please do read this wall before watching the video, and listen for the slight knocking sound.

Links below for the videos:

Sound on COLD start up
A:
Sound when car is WARM
A: B:

I should note:

The car is used, I purchased it a little over a month ago. I don't know the cars history at all, other than the very crappy carfax I bought. It seems like the person before me took care of the basic maintenance. I bought the car at 101k, and now the car has 108k. I changed the oil and oil filter 1,000 miles ago and used full synthetic(for now).

tl;dr

Car is making knocking/ticking sounds under the hood. Watch video
Car is a 2008 Touring Edition used with 108k miles

 

No one? Damn :/

 

Sounds normal and healthy to me. Not something I'd be concerned with. I hear normal valve sound. Under the car I hear faint exhaust leak that may be what your hearing other than that hard to diagnose online. If your overly concerned get an inspection which is what you should have done a month ago. Change all fluids etc.

 

Yeah, I hear an exhaust leak underneath as well. That one is new, I'm sure it's from hitting ice bigger than the car on the road lol.

I just changed all the rest of the fluids the other day. Monday I have an appointment with the dealership to inspect the car.

I just didn't know if those noises were all considered normal on my car. Thanks for the reply

 

That clunking sound could be a bad exhaust mount. I think I heard a leak as well. Lift the car and do a full underbody inspection.

 

My thoughts, if you can't find the problem, then you probably aren't mechanicallly inclined enough to fix it anyways. Might as well just take it in to a shop and be done with it

 

Not entirely true. I just don't have a mechanics stethoscope to pinpoint the exact source of the sound. I did a full underbody inspection and there's nothing loose and I hear and feel no exhaust leak. Everything seems all good.

 

hows the oil pressure look at idle once warmed up?

my HR was very similar sounding when my oil gaskets behind the timing cover went out.

 

Have a look for the fuel pressure regulators, also known as fuel dampers - I'm presuming the 08 has the same design as the previous.
There are several videos/posts showing it and it sounds similar.

 

The oil pressure when warmed up is within normal range. It sits between 15-20psi

That's what I'm assuming it is. It's not super obnoxious, but it does get annoying after a while. I might just order a new one since they're cheap and real easy to replace.