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Very Weird Transmission Issue

So I have a 2011 370z nismo, only mainly driven on weekends, spirited driving here and there. But over the weekend I was doing a couple pulls with my buddy

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Old 05-02-2016, 08:42 PM   #1 (permalink)
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Default Very Weird Transmission Issue

So I have a 2011 370z nismo, only mainly driven on weekends, spirited driving here and there. But over the weekend I was doing a couple pulls with my buddy in sport mode and it locked me out of 5th and 6th gear and popped up yellow triangle for s-mode and wasn't showing any gear indicators on the dash, so I turned it off and turned it back on, everything went back to normal, now here's the weird part, it will go 1st-4th gear smooth no problem, then when going to 5th or 6th it will go in smooth and show on dash it's in either of those gears but will act like its in neutral and not actually engage the gear. But if your at a dead stop and try 5th or 6th gear it will engage it and pull the drivetain. I'm 81 miles over my warranty and the dealership isn't liking that so looking for any help.
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Old 05-02-2016, 09:18 PM   #2 (permalink)
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Yikes. That is a weird one. Well, hello from Morrisville.
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Old 05-02-2016, 10:05 PM   #3 (permalink)
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That's not good. It is as if the shift fork for 5th and 6th has an issue or you have a counter shaft nut that has backed off causing the issue. The older 280z and 280zx trannies would do this. Most of the time it would destroy the tranny in the process because the nut would fall into the gears.
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Old 05-02-2016, 10:07 PM   #4 (permalink)
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How many miles on the car? Powertrain warranty should cover it.
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Old 05-02-2016, 11:35 PM   #5 (permalink)
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Quote:
Originally Posted by Spooler View Post
That's not good. It is as if the shift fork for 5th and 6th has an issue or you have a counter shaft nut that has backed off causing the issue. The older 280z and 280zx trannies would do this. Most of the time it would destroy the tranny in the process because the nut would fall into the gears.
I was thinking shift fork, but have encountered a shift fork issue before and it wouldn't go in smoothly at a stop or rolling

Last edited by nickelplease; 05-03-2016 at 04:39 AM.
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Old 05-02-2016, 11:36 PM   #6 (permalink)
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Quote:
Originally Posted by Spooler View Post
How many miles on the car? Powertrain warranty should cover it.
I'm at 60,081 but the car is also Greddy twin turboed
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Old 05-02-2016, 11:41 PM   #7 (permalink)
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Quote:
Originally Posted by nickelplease View Post
I'm at 60,081 but the car is also Greddy twin turboed
Ugg, your done. You can see if they can fix yours. If not your in for a tranny.
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Old 05-03-2016, 04:41 AM   #8 (permalink)
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Ugg, your done. You can see if they can fix yours. If not your in for a tranny.
Im going to take it up to the stealership this week and have them diagnose it if it turns out to be tranny, im going to pull it myself and replace with one my buddy has out of his 2010.
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Old 05-03-2016, 06:56 AM   #9 (permalink)
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Before taking it to the dealer, I'd get an OBD/CAN scanner and see if any DTCs have been thrown. It's a long shot but you can borrow a scanner at most auto parts stores so nothing to lose.
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Old 05-03-2016, 07:00 AM   #10 (permalink)
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like SouthArk370z said, get a reader and get the code.

But it does not sound good.
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Old 05-03-2016, 08:12 AM   #11 (permalink)
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With only 81 miles over, there's a good chance your Nissan dealer goodwill the warranty. However, now I see you have a turbo. I can see the dealer making a connection between the turbo and your tranny going out.
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