Ebib1969

zakmartin

Is the rattling noise coming from the car or from somewhere else? Like maybe three houses over?

Unless you post a coherent help ticket that shows you've put at least a modicum of effort in trying to figure out what part of the car the rattle is coming from, then that's going to be about the best help you can expect.

Year / Mileage / Mods / Condition of Vehicle (rust, etc.)?????

Ebib1969

Atreyu'z 350

From the information you've provided I was going to say that it could be your timing chain, as the chain tensioner is oil pressure dependent.. It's a pretty common cold start noise with the VQ engines.. Does it sound like it's coming from the timing chain area, and diminishing after 2-3 seconds?

Ebib1969

zakmartin

Well look, it doesn't take a genius to figure out how to ask a sensible question. It's like going to a doctor and saying, "Something hurts. What's wrong with me?"

Have someone start the car when it's cold and listen for the location the rattle is coming from (under the hood, under the car, wherever.) Then report back. Any answer you get until then is going to be an uninformed one and simple conjecture.

Some basic (obvious) checking can improve this thread by leaps and bounds.

Until then...

Atreyu'z 350

OK. Then I'm going to guess that it's just timing chain slap until the tensioner becomes pressurized with motor oil.. What weight and type of oil are you running? Did this noise just start presenting itself after you've replaced all those parts? Were your replacement parts OEM NISSAN or aftermarket?

Atreyu'z 350

lol Lemme just.. slip on outta' here now.

zakmartin

Could be a loose exhaust shield. Could be a guy with maracas hanging out in the shadows.

Ebib1969

Duuuu!!!,... I've already done that,... and we've chained the timing chain and tensioners,... also replaced oil and water pump,... and it's still doing it,... so I thought I would reach out at this forum for help,... ***

Atreyu'z 350

Are you talking to Zak or me?

travlee

iTrader: (8)

i think the asshat op is hearing the marbles rattle around in his head

travlee

iTrader: (8)

HOMiEZ

iTrader: (1)

Has anyone solved any problem if they said I heard a rattling noise when car starts? I guess this doesn't happen because the question is warm.

Any forum requires a sincere question instead of vague and smart lowball questions

CK_32

iTrader: (1)

Either everything listed above or throw out bearing.

As soon as I changed my bad tensioner my throw out went out which sounded exactly the same as the loose tensioner.

MicVelo

It's most likely an exhaust heat shield. It goes away right after the car is started, yes?

If so, tons of Zs do this. They're loose when they're cold and as soon as it heats up/expands, no more rattle. Mine has done this since I've owned it.

Atreyu'z 350

Yeah.. only problem with that is that he said the noise is coming from the timing chain area.

Atreyu'z 350

Wait. Huh? You're using some kinda' word voodoo, aren't you? ...

MicVelo

Where?

Others speculated timing chain and OP said he changed timing chain but did not identify the locale. Also who's to say the sound is coming from that far forward? The specific rattling sound I hear from the cabin sounds like it's from the front until I knelt down next to the front and under the fore edge of the door.

Not saying you're wrong cuz yes, as you said, the tensioner is yet another area it could be. But at this point, just guessing and offering up another possibility.

And, I asked the Z shop about it when I first got the car. "Status quo, not unusual."

CK_32

iTrader: (1)

Yea to further explain my post. The rattle of the bearing is only when the clutch isn’t engaged. It also guns or buzzes when I’m neutral.

So if it’s on idle or when cold only probably not the bearing.