Cold start clatter on 2012 2.5S

[chanli]

I just bought my car a week ago, and from the first day I noticed there's a continuous clatter sound from the transmission or engine when pressing gas pedal.

It happens only when pressing gas pedal, and only when just starting the car, lasts for a few minutes until the temperature is up. Normally it should be gone in about 2 miles.
There's no clatter when the engine is idle. I would try whether there is the clatter if I press gas pedal on neutral.(updated: no clatter on P or N)

I read the FAQ, and this post.
http://www.nissanclub.com/forums/2007-n ... atter.html

But I don't think they are the same cause, because the sound is there even beyond 2200rpm. If I press gas pedal harder, the clatter will be faster.

Is this normal, or I need to go back to the dealer to ask them to have a check?
Thanks,
Chan

[Towncivilian]

I'd take it to the dealer to have them take a look and document it. If they can't reproduce the issue, have them check other 2012 Altimas to see if the noise can be reproduced. Your linked post is undoubtedly a resolved issue by now, given that it affected 2007/2008 models.

Welcome to NICO.

[chanli]

I checked this morning, and there's no such sound when I put the transmission to N or P. I will contact the deal for a check.

[flip228]

i've had two altimas a 2004 and now a 2008 coupe both made the exact noise ur explaining never had a problem with either bought both from 2 diff dealers in 2 diff states idk what it is but it's normal to me.


Edit: it almost sounds like there's a thin metal cover somewhere on the engine that is vibrating but only lasts until I back out of the driveway and sometimes when its really cold as a drive off but after that completely gone. I've been told alot of things including the ABS checking itself but its deff not that, completely diff sounds and or vibrations.

[el_blacky06]

On my 07 altima sedan also does the same thing in cold starts. It only does it once like if its hitting something in the header area but I find it normal now. Til this day idk what its causing that but as long as nothing breaks, I'm fine with it.

[funkee]

el_blacky... that sounds like the abs self check; totally normal. i'm not sure about OP's problem, however.