5th gear "crunching" with shift

Auston · 02-03-2010, 10:02 PM

Quote:

Originally Posted by Sparhax

Just took mine in this morning for 6th gear grinding. I'll let you guys know what the dealer says. I should note that I have a base without syncro rev.

How often does it grind?

Urbanracer · 02-03-2010, 10:32 PM

Double clutching will get you around the problem until you can get the car to the dealer. Its a pain in the butt to do but it works.

Sparhax · 02-04-2010, 09:54 AM

The dealer was able to reproduce the issue but asked me to monitor the situation to see if it gets worse by next maintenance. I'll probably push for a new transmission next time. It's just an annoyance for the time being but a new car shouldn't do that.

Auston I would say it does it more than 50% of the time unless I shift real slowly.

marazzinissan · 02-04-2010, 12:15 PM

Be sure to take your Nissan 370Z to a Certified Nissan Service Center with a good reputation for accurate service. Check online to find one near you.
Detailed Review of Sutherlin Nissan of Fort Myers posted by sunshine0730

ZzzZz · 02-04-2010, 02:33 PM

I think for our trannies, it "normally happens" and there is a history of this, but is definitely not normal/good.

My 6th gear grinds/crunches if I shift quick. I've found that ever since I switched to Redline Oil, step on the clutch fast&quick, and shift to 6th slowly when it feels like it doesn't want to go in gear.... that it doesn't crunch anymore.

Auston · 02-04-2010, 10:02 PM

Quote:

Originally Posted by Sparhax

The dealer was able to reproduce the issue but asked me to monitor the situation to see if it gets worse by next maintenance. I'll probably push for a new transmission next time. It's just an annoyance for the time being but a new car shouldn't do that.

Auston I would say it does it more than 50% of the time unless I shift real slowly.

Wow, 50% of the time with fast shifts. This is ridiculous. Our car is under
warranty they _will_ need to fix this

Sparhax · 02-05-2010, 08:57 AM

Yeah problem is that my brain is already conditioned to shift slowly in 6th. Maybe I should just start hitting it hard till it fails. I can reproduce the grind over and over again by skipping 5th and going straight to 6th. I believe this is due to the higher RPMs.

Auston · 02-13-2010, 05:17 PM

Any updates on this from anyone? Mine is still crunching in 5th only about once
a day.

ejrives · 02-13-2010, 09:02 PM

Quote:

Originally Posted by Auston

Any updates on this from anyone? Mine is still crunching in 5th only about once
a day.

go to the dealership. It isn't normal. I had the same issue with different gears and got a new tranny. I posted the link in here already

Auston · 02-14-2010, 02:14 PM

Quote:

Originally Posted by ejrives

go to the dealership. It isn't normal. I had the same issue with different gears and got a new tranny. I posted the link in here already

I hear you, I went to the dealership and they replicated the issue. Weeks
later they told me to bring it back if it gets worse.

I figure if I bring it back again they will want to replicate it again. Since it
only happens about once a day, it's highly unlikely that it will act up again
with them driving. So I've been waiting for it to get worse to avoid certain
hassle with the dealership

mazdaspeed3 · 02-16-2010, 04:37 PM

Don't know if this will help, but has anyone thought about changing out one or more of the motor mounts? I have a Mazdaspeed 3 and a lot of people complained about grinding until they changed to stiffer motor mounts. It made a huge difference for me at least. I imagine that quick shifting jostles the transmission quite a bit, and putting a stiffer anchor to the chassis could help.

Cameron

Solus · 02-17-2010, 10:51 AM

I am on my third transmission for this exact problem.. however this one has been running strong for all of 9k miles lol

Auston · 02-17-2010, 10:27 PM

Quote:

Originally Posted by Solus

I am on my third transmission for this exact problem.. however this one has been running strong for all of 9k miles lol

So you've successfully gotten your transmission replaced under warranty.
Any tips for getting Nissan to do this? My transmission is crunching in
5th gear about once a day for about 3 months now.

Josh@STILLEN · 02-17-2010, 10:34 PM

Keep going back.. make an appt.. take it back in. If they make the call to Nissan they will do a full transmission.

You've successfully replicated the problem, it's now escalating, end of story.

Solus · 02-18-2010, 06:05 AM

Yeah it was easy for me each time. I took it in they replicated it... called techline... put a new trans in..

02-03-2010, 10:32 PM	#32 (permalink)
Urbanracer Enthusiast Member Join Date: Oct 2009 Location: The mid-west, USA Posts: 266 Drives: God's Chariot Rep Power: 15	Double clutching will get you around the problem until you can get the car to the dealer. Its a pain in the butt to do but it works. __________________ 09 Nismo - HKS \| Berk \| HPS \| K&N \| Zspeed 09 Maxima \| 09 CBR 1000RR \| 02 CBR F4i

02-04-2010, 12:15 PM	#34 (permalink)
marazzinissan Base Member Join Date: Feb 2010 Location: Naples, Florida Posts: 2 Drives: 2002 Nissan Altima Rep Power: 15	Servicing your 370Z Be sure to take your Nissan 370Z to a Certified Nissan Service Center with a good reputation for accurate service. Check online to find one near you. Detailed Review of Sutherlin Nissan of Fort Myers posted by sunshine0730 Last edited by marazzinissan; 02-04-2010 at 12:16 PM. Reason: mistake in url

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02-04-2010, 09:54 AM	#33 (permalink)
Sparhax Base Member Join Date: Apr 2009 Location: Houston Age: 39 Posts: 32 Drives: 2017 370z Sport MT Rep Power: 16	The dealer was able to reproduce the issue but asked me to monitor the situation to see if it gets worse by next maintenance. I'll probably push for a new transmission next time. It's just an annoyance for the time being but a new car shouldn't do that. Auston I would say it does it more than 50% of the time unless I shift real slowly.

02-04-2010, 02:33 PM	#35 (permalink)
ZzzZz Base Member Join Date: Jan 2009 Location: SoCal Posts: 125 Drives: PG370, MT Rep Power: 16	I think for our trannies, it "normally happens" and there is a history of this, but is definitely not normal/good. My 6th gear grinds/crunches if I shift quick. I've found that ever since I switched to Redline Oil, step on the clutch fast&quick, and shift to 6th slowly when it feels like it doesn't want to go in gear.... that it doesn't crunch anymore.

02-05-2010, 08:57 AM	#37 (permalink)
Sparhax Base Member Join Date: Apr 2009 Location: Houston Age: 39 Posts: 32 Drives: 2017 370z Sport MT Rep Power: 16	Yeah problem is that my brain is already conditioned to shift slowly in 6th. Maybe I should just start hitting it hard till it fails. I can reproduce the grind over and over again by skipping 5th and going straight to 6th. I believe this is due to the higher RPMs.

02-13-2010, 05:17 PM	#38 (permalink)
Auston Track Member Join Date: Nov 2009 Location: Austin, TX Posts: 764 Drives: 2009 Z34 T+S RAE Rep Power: 16	Any updates on this from anyone? Mine is still crunching in 5th only about once a day.

02-16-2010, 04:37 PM	#41 (permalink)
mazdaspeed3 Base Member Join Date: Feb 2010 Location: the basement Posts: 22 Drives: 09 370z sprt+Trng Rep Power: 15	Don't know if this will help, but has anyone thought about changing out one or more of the motor mounts? I have a Mazdaspeed 3 and a lot of people complained about grinding until they changed to stiffer motor mounts. It made a huge difference for me at least. I imagine that quick shifting jostles the transmission quite a bit, and putting a stiffer anchor to the chassis could help. Cameron

02-17-2010, 10:51 AM	#42 (permalink)
Solus Enthusiast Member Join Date: Apr 2009 Location: Jacksonville, NC Posts: 453 Drives: 2009 Nissan 370z Rep Power: 16	I am on my third transmission for this exact problem.. however this one has been running strong for all of 9k miles lol

02-17-2010, 10:34 PM	#44 (permalink)
Josh@STILLEN The370Z.com Sponsor Join Date: Dec 2008 Location: Costa Mesa, CA Posts: 1,197 Drives: 2004 G35 Coupe 6MT Rep Power: 533	Keep going back.. make an appt.. take it back in. If they make the call to Nissan they will do a full transmission. You've successfully replicated the problem, it's now escalating, end of story.

02-18-2010, 06:05 AM	#45 (permalink)
Solus Enthusiast Member Join Date: Apr 2009 Location: Jacksonville, NC Posts: 453 Drives: 2009 Nissan 370z Rep Power: 16	Yeah it was easy for me each time. I took it in they replicated it... called techline... put a new trans in..