Transmission

The G-Series Tuning Forum is the place to discuss G35/G37 performance modifications and mechanical repair.
GTSibs
Posts: 5
Joined: Tue Sep 11, 2012 7:58 am
Car: 2012 G37XS

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I just purchased a new 2012 G37XS, I find the shifting from a slow start is herky jerky, seems to rev up high, 3000 rpm, then drops. I had 2 altimas before and found the shifting very smooth. Is this normal?


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telcoman
Posts: 5762
Joined: Sat Jul 08, 2006 11:30 am
Car: Tesla 2022 Model Y, 2016 Q70 Bye 2012 G37S 6 MT w Nav 94444 mi bye 2006 Infiniti G35 Sedan 6 MT @171796 mi.
Location: Central NJ

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GTSibs wrote:I just purchased a new 2012 G37XS, I find the shifting from a slow start is herky jerky, seems to rev up high, 3000 rpm, then drops. I had 2 altimas before and found the shifting very smooth. Is this normal?
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Go back to the dealer and drive another vehicle like yours

Telcoman

joe603
Posts: 8200
Joined: Mon Nov 21, 2005 5:45 am
Car: 2014 Durango R/T
Location: Atlanta

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The altimas were a different style transmission...a CVT. The Infiniti has a normal-gear transmission. The firmness depends on throttle position and speed.

I agree with Telco, check out a different car to see if it's just you getting used to the transmission, or an issue with your car.

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kmckis1029
Posts: 1768
Joined: Wed Aug 13, 2008 8:45 am
Car: 2016 Q50 RS400 AWD

2010 G37x w/Prem, Nav, & Wood (sold)

2005 G35x w/Prem C (traded in)
Location: Centerville, GA
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Also the transmission learns your driving stlye in a couple weeks... so if you havent drove the car at least a month its still learning and everything should smooth out. The dealer can reset the learning or you can do a battery pull and let it start over.

I'm thinking if you drive a different car that has been test driven more than your car you will fell different shifting, (usually very quick shifting as people are playing with the car) but doent nessacerly mean your G's transmission is bad, just hasnt been driven enough to have any sort of profile stored.

GTSibs
Posts: 5
Joined: Tue Sep 11, 2012 7:58 am
Car: 2012 G37XS

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I think your correct, it does drive differently now, 3 weeks. Shifts smoother, I had 2 Altima's previously with crv transmission. I'm surprised the G37xS has this learning ability, I'll ask the service manager when I see them for the first oil change. Thanks.


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