My 2nd gear will grind if I shift very fast near redline. No other gear does this. I took it to the dealer a week or two ago and they said they didn't notice the problem (probably shifted too slow/too low RPM). It doesn't do this every time, maybe 1/3 or 1/4 fast shifts.

I tried swapping the tranny fluid out with Redline GL-4 synthetic, but it still does it.

Any other ideas to help?

 

Glad I'm not the only one. I have the same exact problem on my 05. I used to think it was just me. If I take time to shift a little slower it doesn't do it, but when shifting fast near redline like you said, it happens.

 

I've grinded prolly around 4 times in the past 30 days. I dunno why but sometimes I grind 2nd when I redline....only sometimes why? I also have an 05.

 

05 with the same problem here. I'm getting my tranny replaced tomorrow, so I hope that'll take care of it.

 

I have the same problem on my 05, I thought that i just wasn't getting the clutch fully engaged..but when the air is cold it is extremely noticible...i will wait untill the winter and bring it in.

 

why are you getting it replaced?

 

Getting it replaced for the infamous 'throwout bearing noise when releasing the clutch at nutural' lol

 

ic...I hope all goes well then.

 

Describe it please ? How does it sound ? How often ?

 

me too...1 month old 05 Z...miss second gear quite a bit when I redline first.

 

Any fix for this problem???

 

Yes, three or four new trannsmissions and lots of luck!

 

I'm actually taking it in tommorrow for the same thing except mines on 03

 

https://my350z.com/forum/maintenance-and-repair/29503-rattle-from-tranny-when-car-not-in-gear-and-clutch-out.html

Just read the thread for yourself. There's a detailed description and also
mpeg audio clip of that noise.

 

hey guys, I've got an 05 6MT G35 coupe... same exact problem on the 1-2 shift... only has 700 miles on it and just started doing it today... did it 4 times in one half-hour drive... another G35 owner commented that he has this and switched to mobil 1 fluid and it all went away... i've read many good things about the BG Synchro Shift fluid, it apparently has helped many grinding DSM trannies become normal again... is there any update on this, any proven fixes?

I know that 2nd gear has a triple cone synchro... supposed to make that shift super easy, kind of ironic that it's the only one causing problems :-(

 

this grinding problem is very common. I just got mine back from the dealer with a new tranny.....here's some link of threads that may help you.

https://my350z.com/forum/2003-2009-nissan-350z/139028-dealer-said-grinding-normal.html

https://my350z.com/forum/2003-2009-nissan-350z/144952-to-all-who-got-their-trannies-replaced.html

Good luck, my adivce is to call NNA

 

Besides the 425 posts here

https://my350z.com/forum/maintenance-and-repair/39553-post-here-only-if-you-have-had-your-tranny-replaced.html

this is the first that I’ve heard about the problem.

 

My 03 was grinding on 3rd, no matter how fast or slow the shift would be.. I took it to the dealer out here (Universal Nissan), to get a oil change and the advisor ends up stating that the tranny needs to be changed and that its under warranty... That made me smile, and now I have to thank Kennia over at Universal Nissan in LA..

 

pretty soon, there will be a re-call due to this problem just like the tire thing. It seems like half the Z's here have this problem and I belive that if the other half haven't,....they will in the future.

 

I had the same problem with my 05 but it went away. How many miles do you have on yer car? Because this only happend to me around 2-3k and now its fine at almost 7k.