Problem help

Naum16 · 04-21-2013, 09:49 PM

I have a 09 370z 7AMT and the problem i have only occurs when im in sports mode going from 2 to 1 by it's self. When it drops to 1 by its self when i creep to a stop sign theres a odd click doesnt sound smooth. i dont have the problem in auto but everytime it doesnt go down to 1st smooth unless i do a hard break. Has anyone had this problem?

Trips · 04-21-2013, 11:59 PM

Thats pretty normal.

The transmission is not very smooth coming to a stop from 2nd to first in manual/sport mode

CDepp · 04-22-2013, 12:10 AM

Don't creep to a stop in your z. You have the sports pkg with the big brakes. While it doesn't hurt them, they operate much better under moderate to heavy braking. Now, to the question: I'm guessing if you're in sports mode, the car is gauging your speed as if it were having the brakes applied by a person wanting to be in sports mode, not creeping to stops. Check to see if the downshift changes out of sports mode, and waits until you're almost at a dead stop.

DEpointfive0 · 04-22-2013, 12:53 AM

7AT!!! Lol
No "M"

danelonson · 04-22-2013, 09:22 AM

Quote:

Originally Posted by CDepp

Don't creep to a stop in your z. You have the sports pkg with the big brakes.

I noticed this on my sport package 7AT as well. It doesn't matter if I'm in sports mode or D, if I creep to a stop it shifts hard (jerks the car forward) from 2nd to 1st. But if I brake a little harder, it doesn't do it unless I brake extremely hard then it does it sometimes. I believe that its the computer fuggin' up and not downshifting properly unless its my tranny that's messed up

I bought the Z with the intention of keeping it for as long as possible but I have a feeling that my transmission isn't gonna last very long

Naum16 · 04-22-2013, 09:23 AM

When i approach a stop sign and going to a rolling stop dropping into 1st from second around 1,000rpm) theres a click that i can hear i cant tell if its normal or bad.

Naum16 · 04-22-2013, 09:26 AM

7AT Sorry lol

Naum16 · 04-22-2013, 11:05 AM

It can't be the tranny because when you drive it shifts up smooth it's just when coming to those odd stops

Naum16 · 04-22-2013, 11:12 AM

Quote:

Originally Posted by danelonson

I noticed this on my sport package 7AT as well. It doesn't matter if I'm in sports mode or D, if I creep to a stop it shifts hard (jerks the car forward) from 2nd to 1st. But if I brake a little harder, it doesn't do it unless I brake extremely hard then it does it sometimes. I believe that its the computer fuggin' up and not downshifting properly unless its my tranny that's messed up

I bought the Z with the intention of keeping it for as long as possible but I have a feeling that my transmission isn't gonna last very long

please help if possible , what to do

Naum16 · 04-22-2013, 11:13 AM

^ exactly what is going on with me to. It's really odd. And really starting to bother me any experts know what going on

chrischhorn · 04-22-2013, 01:26 PM

Try changing your trans fluid to start?

Naum16 · 04-22-2013, 01:40 PM

I thought the 7AT trans is mant. free and if i tried i couldnt locate where its at.

CDepp · 04-22-2013, 02:10 PM

Quote:

Originally Posted by danelonson

I noticed this on my sport package 7AT as well. It doesn't matter if I'm in sports mode or D, if I creep to a stop it shifts hard (jerks the car forward) from 2nd to 1st. But if I brake a little harder, it doesn't do it unless I brake extremely hard then it does it sometimes. I believe that its the computer fuggin' up and not downshifting properly unless its my tranny that's messed up

I bought the Z with the intention of keeping it for as long as possible but I have a feeling that my transmission isn't gonna last very long

Interesting that it happens in or out of S-mode. As for the braking, you'll get squeal if you gently apply the brakes as if you were hitting the end of life of your brake pads.

I assume, not having a AT Z, that it's just trying to do what many MT drivers do and force the car into 1st before coming to a complete stop. Do you know what mph it generally does this at?

Edit: I wouldn't worry too much about the shift to your PTO gear at low speeds. It's no worse than upshifting and getting on it. You're just putting the force of the vehicle changing lateral direction onto your transmission.

danelonson · 04-22-2013, 07:05 PM

Quote:

Originally Posted by CDepp

I assume, not having a AT Z, that it's just trying to do what many MT drivers do and force the car into 1st before coming to a complete stop. Do you know what mph it generally does this at?

Yes this could be true, the computer is probably forcing the tranny into 1st before coming to a complete stop. I would say that my car does this between 5-2 mph.

danelonson · 04-22-2013, 07:07 PM

Quote:

Originally Posted by CDepp

Edit: I wouldn't worry too much about the shift to your PTO gear at low speeds.

What does PTO mean?

04-21-2013, 09:49 PM	#1 (permalink)
Naum16 Base Member Join Date: Mar 2013 Location: IN Posts: 152 Drives: 09 370z Rep Power: 12	Problem help I have a 09 370z 7AMT and the problem i have only occurs when im in sports mode going from 2 to 1 by it's self. When it drops to 1 by its self when i creep to a stop sign theres a odd click doesnt sound smooth. i dont have the problem in auto but everytime it doesnt go down to 1st smooth unless i do a hard break. Has anyone had this problem?

04-21-2013, 11:59 PM	#2 (permalink)
Trips Administrator Join Date: May 2009 Location: Disneyland, Ca Posts: 8,728 Drives: 🔰 Rep Power: 10	Thats pretty normal. The transmission is not very smooth coming to a stop from 2nd to first in manual/sport mode __________________

04-22-2013, 12:10 AM	#3 (permalink)
CDepp Track Member Join Date: Nov 2012 Location: Charlotte, NC Posts: 837 Drives: sideways Rep Power: 13	Don't creep to a stop in your z. You have the sports pkg with the big brakes. While it doesn't hurt them, they operate much better under moderate to heavy braking. Now, to the question: I'm guessing if you're in sports mode, the car is gauging your speed as if it were having the brakes applied by a person wanting to be in sports mode, not creeping to stops. Check to see if the downshift changes out of sports mode, and waits until you're almost at a dead stop. __________________ -CDepp- 2011 MB Base+S M6 \| Invidia Exhaust \| TommyKairaHebiBeibi \| H&R Spacers 15/20 \| GTR Start \| 305hp/240tq

04-22-2013, 12:53 AM	#4 (permalink)
DEpointfive0 Premium Member Bitches Join Date: Jan 2012 Location: SoCal Posts: 14,824 Drives: a lot Rep Power: 17151	7AT!!! Lol No "M" Chuck33079 and Naum16 like this. __________________ Do YOU want to know what/where I got my username from? ( Click to show/hide ) NSFW due to language:

04-22-2013, 09:26 AM	#7 (permalink)
Naum16 Base Member Join Date: Mar 2013 Location: IN Posts: 152 Drives: 09 370z Rep Power: 12	7AT Sorry lol DEpointfive0 likes this.

04-22-2013, 09:23 AM	#6 (permalink)
Naum16 Base Member Join Date: Mar 2013 Location: IN Posts: 152 Drives: 09 370z Rep Power: 12	When i approach a stop sign and going to a rolling stop dropping into 1st from second around 1,000rpm) theres a click that i can hear i cant tell if its normal or bad.

04-22-2013, 11:05 AM	#8 (permalink)
Naum16 Base Member Join Date: Mar 2013 Location: IN Posts: 152 Drives: 09 370z Rep Power: 12	It can't be the tranny because when you drive it shifts up smooth it's just when coming to those odd stops

04-22-2013, 11:13 AM	#10 (permalink)
Naum16 Base Member Join Date: Mar 2013 Location: IN Posts: 152 Drives: 09 370z Rep Power: 12	^ exactly what is going on with me to. It's really odd. And really starting to bother me any experts know what going on

04-22-2013, 01:26 PM	#11 (permalink)
chrischhorn A True Z Fanatic Join Date: Jan 2012 Location: Mililani, HI Posts: 1,566 Drives: 2014 Juke Nismo RS Rep Power: 16	Try changing your trans fluid to start? __________________ R.I.P. 8/01/13 1SlowZ One day I'll have another....

04-22-2013, 01:40 PM	#12 (permalink)
Naum16 Base Member Join Date: Mar 2013 Location: IN Posts: 152 Drives: 09 370z Rep Power: 12	I thought the 7AT trans is mant. free and if i tried i couldnt locate where its at.

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