Nissan 370Z Forum - More "possible" 7AT issues

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Nissan 370Z Forum (http://www.the370z.com/)

- Engine & Drivetrain (http://www.the370z.com/engine-drivetrain/)

- - More "possible" 7AT issues (http://www.the370z.com/engine-drivetrain/86758-more-possible-7at-issues.html)

blueranger

03-14-2014 09:47 PM

Quote:

Originally Posted by Fantastic Z (Post 2733947)

I actually have a practically new VLSD from a sport model (less than 4k on it) in my basement waiting to be installed. Redline fluid, Whitleline bushings and new hardware.
http://www.the370z.com/members/fanta...75720-diff.jpg

Where did you get it?

Fantastic Z

03-14-2014 09:58 PM

Haha I bought it off of a forum member Felix 808. He commented a few posts back. I still haven't installed it due to weather and now this odd trans issue :/

megalapagas

03-15-2014 12:17 PM

Hey guys I have an UPDATE ON 7AT......Well recently I got stranded on the road and didn't knoe the reason why seeing as my Z showed I had half a tank....Ling story short something was wront with my Fuel pump/Assembly and LUCKILY thank The Car Gods the dealer validated my waranty seeing as m 800 miles till waranty is voided. So yea I got a New fuel Pump and Assembly thanks to warranty :tup:

blueranger

03-16-2014 10:19 AM

Quote:

Originally Posted by Fantastic Z (Post 2735911)

Haha I bought it off of a forum member Felix 808. He commented a few posts back. I still haven't installed it due to weather and now this odd trans issue :/

That's great... I have been looking for a manual tranny (vlsd) "sport" rear diff pumpkin. Even Felix 808 has tried to help me locate one with no luck.

JWillis72

03-16-2014 05:00 PM

Quote:

Originally Posted by Fantastic Z (Post 2733924)

haha yeah I too think I've gotten rear ended with how bad it jerked. First time I REALLY noticed it, I actually got out of my car :rofl2: NOT COOL!

Mine had been doing this with only 12k on it but after changing oil in the diff last week it all went away.

Fantastic Z

03-27-2014 01:04 PM

Sorry for not updating this sooner. I did get my Z back from the dealership and two different technicians told me that the popping/jerking was considered "normal" operation of the 7AT. To an extent I will believe that but, I did ask them to document my visit thoroughly and that when the problem becomes more consistent (which over the hot summer it will) I will bring it back them for more investigating.

I have yet to attempt my own trans fluid work as I do not have the proper tool for the lower trans pan fitting. The diff may aid somewhat to the jerking with the OE bushings and fluid. As soon as I get time the new diff with poly bushings and better fluid will be installed in hopes to alleviate that jerking motion.

Zerocool

03-27-2014 06:35 PM

Quote:

Originally Posted by RoadsterST (Post 2734177)

Honestly think its just the computer picking back up where you left it.

Sent while driving!

^

yeah it's as if the computer is re-adjusting the throttle and rpm. I get the same jerk sometimes.

conmam

04-14-2015 11:15 AM

Quote:

Originally Posted by blueranger (Post 2734157)

I'm about 28k and really like to drive in manual mode most of the time and do notice a little jerk when downshifting from 2nd to first when I switch back to auto mode.

Yeah that is pretty common design flaw of the 7AT, I drove brand new Infiniti Q50S, EX37 and G37 vehicles with the 7AT transmissiosn and they all do the same clunk occasionally, especially when you do a hard stop while simultaneously switching back to D ( Full Auto ). I drive these cars very often since they are all my customers car and I can confirm that. Nothing we can do about this. No TSB for reprogramming either. But so far it did no harms, just annoying, that's all.

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