RPM spike and delay from 4th to 5th gear

Jason · 02-28-2013, 12:50 PM

I've noticed something for a few months while driving my Z (automatic). Whenever I shift from 4th to 5th gear, the tranny hangs a bit. There's a noticeably longer delay in catching the next gear and you can see the RPMs jump right before it goes to 5th. There aren't any clunks or anything of the sort. Aside from that, the tranny is smooth. Any idea what that could be or what I can do to fix it?

Eighties Meta · 02-28-2013, 05:38 PM

I only notice something similiar to this if I'm using the paddle and I'm going like really slow in 4th gear, like 30 or 35 ish. or maybe around 40mph hard to remember exactly but I'm rarely going that slow when engaging 5th or I'm just in automatic mode anyway in heavy traffic.

critical · 07-10-2013, 01:28 AM

Experience this sometimes, only from 4th to 5th. Wish I knew why.

TVPostSound · 07-13-2013, 01:17 PM

Quote:

Originally Posted by Jason

I've noticed something for a few months while driving my Z (automatic). Whenever I shift from 4th to 5th gear, the tranny hangs a bit. There's a noticeably longer delay in catching the next gear and you can see the RPMs jump right before it goes to 5th. There aren't any clunks or anything of the sort. Aside from that, the tranny is smooth. Any idea what that could be or what I can do to fix it?

7AT??

Infiniti has a TSB to reprogram the TCU.
Nissan should be the same.
CHeck with your dealer.

critical · 07-14-2013, 07:52 PM

Do you guys have 09's as well?

Quote:

Originally Posted by TVPostSound

7AT??

Infiniti has a TSB to reprogram the TCU.
Nissan should be the same.
CHeck with your dealer.

Thx. Seeing the infinity one but nothing for Nissan minus a ECM replacement TSB

Relevant thread:

2010 7at tsb

Maybe replacing the ECM would fix this? Already talking with my dealer.

Eighties Meta · 07-14-2013, 09:21 PM

It doest bother me enough to do anything about it honestly

Sent from my GT-N8013 using Tapatalk 2

critical · 07-15-2013, 01:19 AM

Quote:

Originally Posted by Eighties Meta

It doest bother me enough to do anything about it honestly

Sent from my GT-N8013 using Tapatalk 2

no!!!! Nissan must pay for our suffering! lol :P

falconfixer · 07-15-2013, 07:12 AM

Happens to me every day during the first couple of "shifts". 2011 7 AT here. Mentioned it awhile back on here as well and really just learned to live with it. One of 3 things will happen, 1) I'll blow the transmission up and get it replaced 2) Nothing at all will happen to the transmission and I continue living with it 3) I'll trade it in before the warranty is up and not care one way or the other.

02-28-2013, 12:50 PM	#1 (permalink)
Jason Enthusiast Member Join Date: May 2009 Location: Florida Posts: 309 Drives: Nissan 370Z Rep Power: 16	RPM spike and delay from 4th to 5th gear I've noticed something for a few months while driving my Z (automatic). Whenever I shift from 4th to 5th gear, the tranny hangs a bit. There's a noticeably longer delay in catching the next gear and you can see the RPMs jump right before it goes to 5th. There aren't any clunks or anything of the sort. Aside from that, the tranny is smooth. Any idea what that could be or what I can do to fix it?

02-28-2013, 05:38 PM	#2 (permalink)
Eighties Meta Enthusiast Member Join Date: Aug 2012 Location: Pasadena, MD Age: 54 Posts: 344 Drives: 09 370z 7AT no-sport Rep Power: 12	I only notice something similiar to this if I'm using the paddle and I'm going like really slow in 4th gear, like 30 or 35 ish. or maybe around 40mph hard to remember exactly but I'm rarely going that slow when engaging 5th or I'm just in automatic mode anyway in heavy traffic. __________________ 2009 370z Touring 7AT/AAM 2.5 true dual exhaust/AAM DE test pipes/z1 vqde35 headers/AAM cold air intake (R-line)/Motordyne M370/Quaife LSD/z1 brake upgd pkg/Swift Spec-R springs/WhiteLine Front&Rear sway bars with endlinks

07-14-2013, 09:21 PM	#6 (permalink)
Eighties Meta Enthusiast Member Join Date: Aug 2012 Location: Pasadena, MD Age: 54 Posts: 344 Drives: 09 370z 7AT no-sport Rep Power: 12	It doest bother me enough to do anything about it honestly Sent from my GT-N8013 using Tapatalk 2 __________________ 2009 370z Touring 7AT/AAM 2.5 true dual exhaust/AAM DE test pipes/z1 vqde35 headers/AAM cold air intake (R-line)/Motordyne M370/Quaife LSD/z1 brake upgd pkg/Swift Spec-R springs/WhiteLine Front&Rear sway bars with endlinks

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07-10-2013, 01:28 AM	#3 (permalink)
critical A True Z Fanatic Join Date: Oct 2012 Location: Washington Posts: 1,252 Drives: 09' 370z 7AT Rep Power: 15	Experience this sometimes, only from 4th to 5th. Wish I knew why.

07-15-2013, 07:12 AM	#8 (permalink)
falconfixer Track Member Join Date: Feb 2012 Location: 10aC Posts: 978 Drives: Taco Rep Power: 76	Happens to me every day during the first couple of "shifts". 2011 7 AT here. Mentioned it awhile back on here as well and really just learned to live with it. One of 3 things will happen, 1) I'll blow the transmission up and get it replaced 2) Nothing at all will happen to the transmission and I continue living with it 3) I'll trade it in before the warranty is up and not care one way or the other.