So when my cars in park I'm noticing the idle acts really weird. This could be completely normal, I wouldnt know. The idle stays right around 500 then every few seconds it drops to ~400 and like shakes the whole car.

Details on my car:
2004 350z
5AT
68,000 miles
Full bolt ons
Oil was just changed

*the a/c is off in the video

http://www.youtube.com/watch?v=G0eA2Kc2Rv0

 

Your idle is more at 600. If it's not causing any problems, it's probably nothing.

 

I've never had a car with an idle that didn't fluctuate a little bit. My idle usually drops a bit after the car has been sitting.

 

Well yeah I know it's normal to idle around 600 but what I'm talking about is when it drops and shakes the car. If you watch the whole video you could see it. Is that normal, or anything to worry about?

 

did you move the steering wheel durning the video even the slightest bit ?

 

Seems normal to me considering FSM states idle is 600 +/- 50 rpm

 

No did not touch the steering wheel

 

since i've installed an intake my car does that too, another buddies does the same thing with his cold air and its more noticeable, so it seems to be normal

 

i have it at the dealer to get a new transmission, i mentioned this to them ill let u know what they tell me. but im assuming they are gonna tell me its normal haha

 

That looks like the AC compressor turning on and off, which is normal if the AC or defroster is on.

What's wrong with the transmission they're replacing?

 

Mine does the same thing but worse.
http://www.youtube.com/watch?v=AVAPICejnik
Btw turning on my hazards had nothing to do with it. My car always does this and it makes it difficult to drive sometimes

 

my tranny had a grind into 6th, its being replaced under warranty, i have a simillar idle issue i asked them to take a look at it

 

after i got an intake for my vr4 that thing happened too. idle got weird. there might be a leak somewhere when i installed the intake. but it doesnt really give me that huge problem so i ignore it. check your leaks if you installed a new intake.

 

I've had my intake on for a little over 5 months and am just now noticing it. No too sure.

As stated above, the ac was completely off.

 

... dp