5th gear "crunching" with shift

terbo · 05-05-2010, 05:09 PM

I've got an appointment to take mine in next Tuesday at 6pm. Stupid 6th gear still grinding away

CrownR426 · 05-05-2010, 05:11 PM

Maybe you jumped a tooth!
D:

Jeffblue · 05-05-2010, 06:10 PM

how exactly does one go about grinding a gear... like if they wanted to do it on purpose. i dont really understand how someone grinds the gears in their car.

NYBladeZ · 05-05-2010, 06:22 PM

Damn Nissan gear box, it's so damn clunky is scares the hell out of me even when it's acting normally. Thankfully the clunk differs from a grind.

Josh@STILLEN · 05-05-2010, 06:32 PM

Quote:

Originally Posted by Jeffblue

how exactly does one go about grinding a gear... like if they wanted to do it on purpose. i dont really understand how someone grinds the gears in their car.

Leave the clutch unpressed and move the shifter towards a gear.. it will grind like crazy.

Problem is when the synchros go bad, you can't stop it from grinding (unless you wait seconds before completing the shift)..

tjlazer · 05-05-2010, 10:03 PM

The G35 coupe gear box is worse than the 370Z's.... No issues for me so far...

Red370 · 05-05-2010, 10:13 PM

i've noticed that mine grinds from 6th to 5th on a downshift at highway speeds every so often, makes me grimace every single time, wonder whats up with it...

Auston · 05-06-2010, 12:20 AM

How many miles is everyone having these issues? As reported, mine was at 10k

terbo · 05-06-2010, 01:02 AM

Quote:

Originally Posted by Auston

How many miles is everyone having these issues? As reported, mine was at 10k

I first noticed it at probably 500 miles and by about 3000 miles it was to the point where I can't skip 5th if I don't want to grind 6th and I have to shift slowly. My car is at 8500 miles now.

Josh@STILLEN · 05-06-2010, 01:09 AM

Quote:

Originally Posted by Auston

How many miles is everyone having these issues? As reported, mine was at 10k

Very good question.. I started noticing problems at 8-10k.. didn't take it in until about 19k when I couldn't NOT shift 5th without grinding..

Then I was obviously aware.. had issues at 12k.. replaced.. then 15k.. kept taking it back.. took a couple visits before they would warranty on each occasion.. but ultimately it was evident that it wasn't me doing something wrong.

Now I'm technically out of warranty at 98k.. but I will say I have no issues.. and it's been probably 35k..

It's weird that most don't have issues.. but some do.. almost like it's an on-off switch to whether you'll have problems or not.

I'm hoping I now have a 'good' transmission.. and won't have to worry about it.

Red370 · 05-06-2010, 01:27 AM

Quote:

Originally Posted by Auston

How many miles is everyone having these issues? As reported, mine was at 10k

i first noticed it around 12k, but I'm only having the problem when I downshift to 5th, anyone else experiencing this? no problems upshifting, just when I downshift from 6th.

Sparhax · 05-06-2010, 03:05 PM

Just took my car in for maintenance, I'll be getting a new transmission

terbo · 05-06-2010, 03:17 PM

I think mine is starting to get a little crunchy when I downshift from 6th to 5th, stupid Nissan tranny. I wonder how much money Nissan is losing due to these replacements.

Red370 · 05-09-2010, 08:38 PM

Quote:

Originally Posted by terbo

I think mine is starting to get a little crunchy when I downshift from 6th to 5th, stupid Nissan tranny. I wonder how much money Nissan is losing due to these replacements.

how many miles are you at?

import111 · 05-10-2010, 12:19 AM

Quote:

Originally Posted by Red370

i first noticed it around 12k, but I'm only having the problem when I downshift to 5th, anyone else experiencing this? no problems upshifting, just when I downshift from 6th.

I have the exact same problem. I have to go from 6th to 5th VERY slow to not grind.

05-05-2010, 06:22 PM	#64 (permalink)
NYBladeZ A True Z Fanatic Join Date: Apr 2009 Location: New York Posts: 2,158 Drives: Lotus Exige S Rep Power: 20	Damn Nissan gear box, it's so damn clunky is scares the hell out of me even when it's acting normally. Thankfully the clunk differs from a grind. __________________ 2009 Carbon Fiber/Red 370z aka Trish: Sports Package, Meisterschaft full catback, Fast Intentions Longtube Headers, Injen Long Tube Intakes, UpRev Tune: Sold 2008 Lotus Exige S Club Racer aka Bella, always leaves me smiling

05-05-2010, 10:03 PM	#66 (permalink)
tjlazer A True Z Fanatic Join Date: Dec 2009 Location: Tacoma Age: 53 Posts: 2,496 Drives: Z34, R35 Rep Power: 20	The G35 coupe gear box is worse than the 370Z's.... No issues for me so far... __________________ 2009 370Z Monterey Blue,Nismo Conversion,RE-11's, K&N Typhoon intakes,Blue Kickplates,Homelink,FI 18" CBE,ERZ HFCs,Hotchkis sways, Swift Spec-R, EVO-R Highwing, UPREV

05-05-2010, 10:13 PM	#67 (permalink)
Red370 A True Z Fanatic Join Date: Jul 2009 Location: Kaiserslautern, Germany Posts: 4,391 Drives: your mom to church Rep Power: 296	i've noticed that mine grinds from 6th to 5th on a downshift at highway speeds every so often, makes me grimace every single time, wonder whats up with it... __________________ 2011 Mustang 5.0 \| 3.55's \| Lethal Performance off road H-Pipe \| Magnaflow Muffler Delete \| JLT CAI/Bama tuned 417whp/ 404 ft/lbs

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05-05-2010, 05:09 PM	#61 (permalink)
terbo Base Member Join Date: Nov 2009 Location: Louisville, KY Posts: 143 Drives: 09 Nissan 370Z PW M6 Rep Power: 16	I've got an appointment to take mine in next Tuesday at 6pm. Stupid 6th gear still grinding away

05-05-2010, 05:11 PM	#62 (permalink)
CrownR426 A True Z Fanatic Join Date: Nov 2008 Location: South Korea Posts: 4,676 Drives: Manual Rep Power: 848	Maybe you jumped a tooth! D:

05-05-2010, 06:10 PM	#63 (permalink)
Jeffblue A True Z Fanatic Join Date: Dec 2009 Location: NY Age: 36 Posts: 9,192 Drives: Z32TT & 335xi Coupe Rep Power: 38	how exactly does one go about grinding a gear... like if they wanted to do it on purpose. i dont really understand how someone grinds the gears in their car.

05-06-2010, 12:20 AM	#68 (permalink)
Auston Track Member Join Date: Nov 2009 Location: Austin, TX Posts: 764 Drives: 2009 Z34 T+S RAE Rep Power: 17	How many miles is everyone having these issues? As reported, mine was at 10k

05-06-2010, 03:05 PM	#72 (permalink)
Sparhax Base Member Join Date: Apr 2009 Location: Houston Age: 40 Posts: 32 Drives: 2017 370z Sport MT Rep Power: 16	Just took my car in for maintenance, I'll be getting a new transmission

05-06-2010, 03:17 PM	#73 (permalink)
terbo Base Member Join Date: Nov 2009 Location: Louisville, KY Posts: 143 Drives: 09 Nissan 370Z PW M6 Rep Power: 16	I think mine is starting to get a little crunchy when I downshift from 6th to 5th, stupid Nissan tranny. I wonder how much money Nissan is losing due to these replacements.