The first scenario where you almost look like you're stalled out in an intersection then the GT-R engages in 1st and awkwardly jerks to life = normal, sadly.

Second scenario I've not experienced before (at least from recent memory)...

 

Have you had your 1 year POS done? I'd start with a clutch/gear re-learn which the dealer does as part of the POS, and see if that helps. I've had mine do the same thing when slowly stopping going up a hill, and then taking off. The GR-6 does some strange things at times.

What mods if any do you have?

 

At the moment the car is stock besides some aesthetic mods. I have an HKS Midpipe and Miesterchaft exhaust and K&N Filters waiting to go in though,

I have not done the 1 year POS yet, I purchased the car in April, so thats when I'll take it for the 1 year POS and 1 Year service. Do you think I should try and get it done in advance? (I have a service plan for 5 years). Or do you think I should tell them I want the clutch / gear re learn?

What exactly is a Clutch / Gear Re-Learn?

Thanks for your quick responses!

 

You are probably close enough to your date for the POS, just call them and explain your concerns.

A clutch gear re-learn is performed using a Consult III scan tool. The new Cobb AP version 006 can also perform this.

It resets the clutch touch points of engagement for both clutches and their respective gears.

 

If you're letting the dealer do the clutch relearn etc also ask them to upload the latest rom to the TCM for you. I beleive that 1st 2nd gear behaviour was improved via an updated rom

 

what youre observing doesnt sound normal to me.
maybe a relearn would help. id try that.. and make sure the settings are correct
but either way take it to a dealer.

 

I've experienced the first issue you describe when coming to a slow roll. It almost as if the car is between gears and when you start to accelerate it falls in to first gear. My solution has been to feel when the clutch disengages and down shift to first. This removes the hesitation in the system to select a gear and allows me to pull away without any jerkiness.

I'm not so sure about your second issue. It almost sounds like your shifting at the wrong speed (too slow) or letting off the gas when shifting.

But as everyone has mentioned above it's probably a good idea to get the 1year POS done.

 

Thanks everyone again for the replies, I will be taking it to Nissan next week for the relearn.

I have two more questions though, both issues I'm wondering are normal... I did some searching and keep coming across nothing.

1) When I'm driving with my windows down, and I run over even the slightest bump with my front driver side wheel, I hear a noise that sounds like a big metal chain link chain is being shaken.. Is this normal?

and 2) It appears like the leather on my steering wheel is fading on the bottom... Again I only have about 6600 Miles, and not even a year of ownership. Just wondering if anyone else has notice this at all, or if my eyes are just deceiving me.

 

Bump, has anyone had any experience with these two issues? The front right wheel, and the fading of the leather.

Thanks,
Chris

 

That first part, about how slow it is to go from 2 -> 1 ... yeah... that's one of the most infuriating things about this car.
I've resorted to going M and down shifting myself to make sure it gets to 1 in time for the stop. Then tabbing back to A when I'm ready to head off.

I wish you could set a rule, like : if mph < 20, be in 1st. No matter what.

The sluggish shift to 1 isnt actually isolated to 1.
It's when you slow down too fast and RPMs go below 1500 or so.
At that point the transmission goes into what I call a 'down shift limp mode'.
It just holds the clutch[es] as essentially dis-engaged, and leisurely shifts down through whatever gears it has to (although you notice 1st a lot more, since you're gonna want to stop-n-go quickly).

Even in M mode, if you let rpm go below around 1500, it will take ages to down shift. Totally ignoring you even if you're banging on the down-shift paddle yelling "shift you POS!".

Moral of the story : if you care about being in 1st when you come to a stop, go to M, and down shift early, keeping RPMs high (over 1500), so that it responds immediately on down-shift-taps.

-scheherazade

 

I just did my pos and my transmission feels a lot better going into 1st gear. Just have the tech check out all your issues. I would have them fill out the pos service book. The tech told me alignment is for 1k pos service only, which is wrong.

 

i think the wheel sound is a loose tie rod

 

Thanks MC, I'm going to take it to the dealer tomorrow to get a service done.. Or atleast relearn the gearing..

-Chris

 

I remember responding to this issue in another thread. I get the metal chain sound as well.
http://www.nagtroc.org/forums/index.php?showtopic=47005
http://www.nagtroc.org/forums/index.php?showtopic=43892

I just did a learning consult for my 12 month POS and I'm at +2 for the tranny setting. It's a little quicker shift to first when at a rolling stop.

 

Thanks a lot! Ok so it's a normal issue, good to know. TY

What is +2 for tranny setting?

 

Yeah, I had this problem with my old dealer, they had no idea what I was talking about when I asked them to do the learning consult. My new dealer knew what I was talking about and provided the service. I don't know what's up with the inconsistency there. Every dealer should have software for a learning consult as part of their GT-R service. +2 for the trans setting is I think how fast the transmission responds. Ask them what it's at right now (they can tell from running the software) and if it's not at +2, for them to adjust it for the smoother response 2nd - 1st.

 

Yeah, I agree completely. I will tell him about the +2 transmission setting.

BTW has anyone heard about what I posted above? The GTR Tech needing to drive the car for like 6-9 miles to relearn the clutch? I mean it doesn't really bother me that someone's driving the car, just worries me about other people on the road.

 

I have the problems, intermittently. Also, almost hit the car in front of me. Just have to careful.

 

If it makes you feel more at ease, request that your tech include you in the drive so they can show you how it's done.

 

I think clutch relearn is done at the dealership BUT adjustments are donne on the road

 

Pure Playaer,

I've noted both of your shifting issues and possibly have a reason for you. I noted that you are in Miami, has it been cold there recently (colder than usual) or are you driving earlier than normal before February temps get warmed by the sun?

The car in automatic is incredibly gimped until the trans temp gets to a warmer temp. Here in Chicago, every day for the last 4 months I've had to drive in manual mode until the trans temp gets warmer. It's not like I'm a transmission expert, I read this trick in the GT-R owners manual - where it states that cold driving in automatic mode is jerky until warm. The second gear stutter (as you stated, like you're a newbie at driving stick) is especially pronounced until the trans temp starts to warm up. The 2nd gear downshift is also a cold trans issue - I believe. Driving in manual allows you to control these issues and completely removes the problem and when the car gets warmer (not up to temp, just warmer) you can switch back to automatic and problem will be gone.

Now if it hasn't been colder than normal in Miami when you noted this issue my suggestion goes right out the window, but I'm thinking since you live in a warmer climate than Chicago you might not have actually noted this because the trans temp on start up in Miami is usually warmer than whatever threshold is needed to observe this stuttering.

If there has in fact been a cold streak in Miami which has now passed, have you noticed that the issue has maybe gone away? That would be another indication if you don't experience it anymore or experience it as bad.

Please let me know either way, because if it's been warm as heck in Miami and this happened to you, maybe my car has a trans issue too that I've been blaming on the weather because that's what the stupid manual said...

 

My trans setting is at +5 currently. AFAIK it goes to +9 or +10 tops.

The dealer said that +5 is the highest they've ever set it to (not just for me, though).

But I gotta say, even at +5, it's hardly eager to down shift. Way better than +0 (what I had)... but still lazy as hell compared to what I'd do manually.

-scheherazade