7at. Weird behaviour.

Eris · 03-03-2021, 09:40 PM

In case anyone find this post looking for answers should they experience the same issues, the transmission oil change solved things. Was well worth it... but I was suggested I be checking it every 15K just in case.

Sent from my SM-G985F using Tapatalk

markesc · 08-17-2021, 11:59 AM

Funny there's a thread on the g37 forums about the same issue.

My worry is that by having such a harsh shift from 3-4, doesn't that cause potential damage to the flex plate?

Why does it only occur on a 3-4 upshift?

To me this has to be not just fluid related, but software related (TSM?) as well.

Quote:

Originally Posted by Eris

In case anyone find this post looking for answers should they experience the same issues, the transmission oil change solved things. Was well worth it... but I was suggested I be checking it every 15K just in case.

Sent from my SM-G985F using Tapatalk

drumstar7190 · 08-17-2021, 01:12 PM

I sometimes have the harsh up shifts in 4th or 5th. I thought it was the line pressure being changed from the Uprev tune, or transmission being cold since I have a cooler on it. I just had Nissan do a fluid flush, and so far everything seems to be working a little better. I'm right at about 20k. So, I would recommend services at around 20k miles.

03-03-2021, 09:40 PM	#1 (permalink)
Eris Base Member Join Date: Apr 2020 Location: México Posts: 32 Drives: 18 370 Rep Power: 3360	In case anyone find this post looking for answers should they experience the same issues, the transmission oil change solved things. Was well worth it... but I was suggested I be checking it every 15K just in case. Sent from my SM-G985F using Tapatalk SouthArk370Z and Tractionless like this.

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08-17-2021, 01:12 PM	#3 (permalink)
drumstar7190 Base Member Join Date: Apr 2019 Location: Spring Hill TN Posts: 20 Drives: 2017 370Z Nismo 7AT Rep Power: 7	I sometimes have the harsh up shifts in 4th or 5th. I thought it was the line pressure being changed from the Uprev tune, or transmission being cold since I have a cooler on it. I just had Nissan do a fluid flush, and so far everything seems to be working a little better. I'm right at about 20k. So, I would recommend services at around 20k miles.