Is anyone else experiencing this? My '08 G35S has a slight shudder when I'm stopped in D and pressing on the brakes. It normally sits around 600 rpm and once in while fluctuates down to 550rpm.

The car also vibrates when I let go of the brakes and the initial acceleration. Doesn't happen all the time, but pretty darn often. I have a FI exhaust, would this make a difference?

Thanks in advance

 

sometimes it happens to me. the RPM would go a bit lower than normal while idling then it goes back up and the car vibrates a bit.

 

I've been wanting to post this as well. Started a couple months ago.. I have 19k miles. Usually idles at 650 or so, then it drop to 600. Sometimes I feel little engine shimmy, almost feel like it's about to stall... I put it in Neutral and it jumps up to 800 RPM for a few... then settles, but yeah, there is this slight feeling like it's going to stall... Annoying but I figure a dealer would think it's normal so I haven't bothered to take it in.

 

I've also been wanting to take it to the dealer, but I'm afraid the dealer will mention something about my exhaust. I know they'll either give me the "It's normal for your car" or "Your exhaust is screwing things up".

It's been a few months now and it's starting to really bother me... I guess I have to take it to the dealer one of these days. Anyone else with a similar issue?

 

When I start and stop it does that for me... Never after it's warm

 

I've had three VQs, and both of the 3.5L idled pretty rough. I tested other cars at the dealer, and experienced it there too.

That said, think the HR is a bit smoother, but unless you're close to stalling due to the stutter, it's normal.