6th to 5th grind

fuzzywuzzy · 11-14-2011, 12:47 AM

18k miles 6mt touring/sport pkg, only when shifting from 6th to 5th i'll get a small grind but the gear goes in without a problem. Yes the clutch is pressed in all the way and it seems to only do it once each time i drive and after (on the 2nd, 3rd etc) time when downshifting from 6-5 it's without the grind.

It is not a big grind just a little one...is this normal'ish? I really don't want to go to the dealer and try to replicate it and wait on a day off all day in their waiting room if its nothing to bother myself with.

p.s. its only on the downshift between these two gears never on a upshift.

370fan · 11-18-2011, 09:09 AM

Where are you located? Other than "In a house"....

Depending on the dealer they should have seen this grinding before and shouldn't give you too much crap about replacing the whole transmission.

Red__Zed · 11-18-2011, 09:37 AM

Unless your warranty is running out soon, I would just try and live with it for a little while, then go in once it gets bad enough that it is a problem

ZOperaMan · 11-19-2011, 04:08 PM

There are some other threads about this:

5th gear "crunching" with shift

Notchy 3rd and 5th Gears Manual Transmission

Mine is about at the end of warranty - it's going in finally. Grinding hasn't improved, but hasn't gotten worse either. I'll post updates.

--ZOM

Will@Logic · 11-21-2011, 09:08 PM

Quote:

Originally Posted by fuzzywuzzy

18k miles 6mt touring/sport pkg, only when shifting from 6th to 5th i'll get a small grind but the gear goes in without a problem. Yes the clutch is pressed in all the way and it seems to only do it once each time i drive and after (on the 2nd, 3rd etc) time when downshifting from 6-5 it's without the grind.

It is not a big grind just a little one...is this normal'ish? I really don't want to go to the dealer and try to replicate it and wait on a day off all day in their waiting room if its nothing to bother myself with.

p.s. its only on the downshift between these two gears never on a upshift.

Could have something to do with the syncro-rev match.

fuzzywuzzy · 11-21-2011, 09:23 PM

I didn't buy it used I drove it all those miles. It's a bit odd because it dosn't seem to matter if its warmed up or not, hot or cold outside it just happens every once and a while but only from 6th to fifth and i don't recall if it does it at high speeds more 55-47ish 6-5 shift lightly cruising. Should I really take it to the dealer or does it seem to be a normal trait for our cars?

fuzzywuzzy · 11-21-2011, 09:49 PM

Also... Would this be covered by the 3yr 36000 mile or 5 year 60000 mile powertrain warranty?

anthonyy · 11-21-2011, 10:44 PM

If you are still under warranty... why not take it in?
Don't let them just tell you that it's normal. Tell them you'll take a mechanic for a test drive and replicate the sound.

Volk Z · 11-27-2011, 12:48 PM

I had a 2003 350z that had this exact issue start with the 3rd gear... I had NEVER mis-shifted so I knew it wasn't my fault... Needless to say it got worse and worse and eventually the synchro was shot... The transmission was replaced by the dealer with the updated transmission, clutch and one other part... All covered... Car had 18000 miles on it.

This is not something I would let slide. If you haven't already take it to the dealer and get this issue at least filed... Then if down the road it becomes completely shot then you have a case.

Good luck

-Chad

MattP725 · 11-27-2011, 12:55 PM

Quote:

Originally Posted by Volk Z

I had a 2003 350z that had this exact issue start with the 3rd gear... I had NEVER mis-shifted so I knew it wasn't my fault... Needless to say it got worse and worse and eventually the synchro was shot... The transmission was replaced by the dealer with the updated transmission, clutch and one other part... All covered... Car had 18000 miles on it.

This is not something I would let slide. If you haven't already take it to the dealer and get this issue at least filed... Then if down the road it becomes completely shot then you have a case.

Good luck

-Chad

Bad syncro... had this on a past car and eventually the entire trans went. Get it checked out.

ZOperaMan · 03-03-2012, 04:19 PM

Update: New transmission installed - works perfectly. DEFINITE difference.
If your gears are grinding and still in warranty, take it in. If not, my sympathies.

--ZOM

---
I am here: http://tapatalk.com/map.php?c1qarm

Elric · 03-07-2012, 02:03 PM

Quote:

Originally Posted by fuzzywuzzy

18k miles 6mt touring/sport pkg, only when shifting from 6th to 5th i'll get a small grind but the gear goes in without a problem. Yes the clutch is pressed in all the way and it seems to only do it once each time i drive and after (on the 2nd, 3rd etc) time when downshifting from 6-5 it's without the grind.

It is not a big grind just a little one...is this normal'ish? I really don't want to go to the dealer and try to replicate it and wait on a day off all day in their waiting room if its nothing to bother myself with.

p.s. its only on the downshift between these two gears never on a upshift.

What you describe is the EXACT same problem I had with my 6mt. I took it to the dealership and they replaced my trany under warranty without question. great dealership i have

the new tranny feels different

than the origional stock one though... feels less tight when shifting between 5 and 6 back and forth IMO.

11-14-2011, 12:47 AM	#1 (permalink)
fuzzywuzzy Base Member Join Date: Apr 2010 Location: In a house Posts: 211 Drives: 370z Rep Power: 16	6th to 5th grind 18k miles 6mt touring/sport pkg, only when shifting from 6th to 5th i'll get a small grind but the gear goes in without a problem. Yes the clutch is pressed in all the way and it seems to only do it once each time i drive and after (on the 2nd, 3rd etc) time when downshifting from 6-5 it's without the grind. It is not a big grind just a little one...is this normal'ish? I really don't want to go to the dealer and try to replicate it and wait on a day off all day in their waiting room if its nothing to bother myself with. p.s. its only on the downshift between these two gears never on a upshift.

11-18-2011, 09:37 AM	#3 (permalink)
Red__Zed A True Z Fanatic Join Date: Jul 2010 Location: window seat Posts: 28,940 Drives: Mostly on two wheels Rep Power: 120	Unless your warranty is running out soon, I would just try and live with it for a little while, then go in once it gets bad enough that it is a problem Last edited by Red__Zed; 11-19-2011 at 05:35 PM.

11-27-2011, 12:48 PM	#9 (permalink)
Volk Z A True Z Fanatic Join Date: Aug 2011 Location: Laguna Beach, CA Posts: 2,214 Drives: Nismo Z Rep Power: 3066	I had a 2003 350z that had this exact issue start with the 3rd gear... I had NEVER mis-shifted so I knew it wasn't my fault... Needless to say it got worse and worse and eventually the synchro was shot... The transmission was replaced by the dealer with the updated transmission, clutch and one other part... All covered... Car had 18000 miles on it. This is not something I would let slide. If you haven't already take it to the dealer and get this issue at least filed... Then if down the road it becomes completely shot then you have a case. Good luck -Chad __________________ AMUSE * TOMEI * STILLEN * CRAFTSQUARE RECARO * 3M * TOP SECRET * SLICKCARBON

03-03-2012, 04:19 PM	#11 (permalink)
ZOperaMan Base Member Join Date: Dec 2009 Location: Houston, Texas Posts: 82 Drives: 09 TT370z Yellow 6MT Rep Power: 16	Update: New transmission installed - works perfectly. DEFINITE difference. If your gears are grinding and still in warranty, take it in. If not, my sympathies. --ZOM --- I am here: http://tapatalk.com/map.php?c1qarm __________________ Chicane Yellow 2009 370Z Base \| AAM Twin Turbo \| *516whp* Built 3.7 Wiseco-K1 \| AAM Fuel Return, 3-in Dual Exh \| Injector Dyn 1000cc \| CJM Billet Hat-Aeromotive 340 \| Setrab \| Quaife LSD \| Clutchmaster 725 Dual Disc \| CSF Radiator

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11-18-2011, 09:09 AM	#2 (permalink)
370fan Base Member Join Date: Oct 2010 Location: J.P., LA Posts: 47 Drives: 2009 Nismo 370Z Rep Power: 15	Where are you located? Other than "In a house".... Depending on the dealer they should have seen this grinding before and shouldn't give you too much crap about replacing the whole transmission.

11-19-2011, 04:08 PM	#4 (permalink)
ZOperaMan Base Member Join Date: Dec 2009 Location: Houston, Texas Posts: 82 Drives: 09 TT370z Yellow 6MT Rep Power: 16	There are some other threads about this: 5th gear "crunching" with shift Notchy 3rd and 5th Gears Manual Transmission Mine is about at the end of warranty - it's going in finally. Grinding hasn't improved, but hasn't gotten worse either. I'll post updates. --ZOM

11-21-2011, 09:23 PM	#6 (permalink)
fuzzywuzzy Base Member Join Date: Apr 2010 Location: In a house Posts: 211 Drives: 370z Rep Power: 16	I didn't buy it used I drove it all those miles. It's a bit odd because it dosn't seem to matter if its warmed up or not, hot or cold outside it just happens every once and a while but only from 6th to fifth and i don't recall if it does it at high speeds more 55-47ish 6-5 shift lightly cruising. Should I really take it to the dealer or does it seem to be a normal trait for our cars?

11-21-2011, 09:49 PM	#7 (permalink)
fuzzywuzzy Base Member Join Date: Apr 2010 Location: In a house Posts: 211 Drives: 370z Rep Power: 16	Also... Would this be covered by the 3yr 36000 mile or 5 year 60000 mile powertrain warranty?

11-21-2011, 10:44 PM	#8 (permalink)
anthonyy A True Z Fanatic Join Date: Apr 2011 Location: Los Gatos, CA Posts: 1,027 Drives: Lexus CT Rep Power: 17	If you are still under warranty... why not take it in? Don't let them just tell you that it's normal. Tell them you'll take a mechanic for a test drive and replicate the sound.