6th Gear grind

Big J · 09-16-2010, 08:16 PM

Has anybody with a 6 speed 370 experienced this? Mine started grinding 2 days ago about 75% of the time I put it in 6th gear? The car has 3k miles on it

nuts4nissan09 · 09-16-2010, 08:44 PM

I have a '09 Sports w/ the 6 speed and have not had an issue w/ grinding in the 16,xxx miles I've put on the car. It is a little stiff going into 2nd when cold, but fine when warmed up. I don't baby the car, but I do try to be positive w/ my shifts and be kind to the trans. Not saying you aren't, just that some folks abuse their transmissions and then wonder why the synchros are shot. Some have reported grinding in 5th and 6th (especially at high speed-5th to 6th). The ones w/ the grind had their transmissions replaced under warranty. Time to go the dealer. Good luck.

Big J · 09-16-2010, 09:27 PM

Yea I guess it may be going to the dealer next week. I do not baby this car but I have put alot more harder miles on plenty other cars and never had a problem.

Supergoji · 09-17-2010, 12:39 PM

make sure your clutch was installed and the pedal adjusted properly. it can cause the your trans to grind when you shift.

Cmike2780 · 09-17-2010, 01:20 PM

Quote:

Originally Posted by Supergoji

make sure your clutch was installed and the pedal adjusted properly. it can cause the your trans to grind when you shift.

Wouldn't it grind in the lower gears also if that's the case?

Push370zzz · 09-17-2010, 01:40 PM

i grind into fif gear about 20% of the time

Big J · 09-17-2010, 01:49 PM

It only grinds in 5th, I think if it were a clutch issue it would do it in more than that one gear. I'm gonna drive it a little longer bc I'm gonna look like a retard if I get to the dealer and it doesn't grind but like once of twice if at all.

Supergoji · 09-19-2010, 09:37 PM

Quote:

Originally Posted by Cmike2780

Wouldn't it grind in the lower gears also if that's the case?

usually thats the case, but my buddy had a transmission that grinded 5th because the shift fork was a little bent. so it could be that as well.

CrownR426 · 09-21-2010, 01:10 AM

Strange...
I've heard of 5th gear grinding but not 6th...

Master_Ly · 09-21-2010, 03:06 PM

Ouch. Sounds like what I went through just recently. Here's my thread: Notchy 3rd and 5th Gears Manual Transmission. I hope this will help you.

Big J · 09-23-2010, 11:18 AM

Well oddly it has stopped grinding the past few days lol. Maybe it'll just all go to hell soon.

Big J · 09-23-2010, 11:19 AM

I noticed that I usually drive1-2-3-4-6 gear, if I go from 5-6 then there is no grinding.

vipor · 09-23-2010, 11:58 AM

My 6th gear synchro was failing and I had the whole transmission replaced under warranty. This is most likely your problem, they should take care of it for you.

I had one tech blame it on shifting from 4th to 6th since it was more prevalent in that situation, but it shouldn't grind regardless. I pushed the issue with someone that actually could make decisions and it was handled. Took about a week.

Dembflyr · 09-24-2010, 09:31 AM

Quote:

Originally Posted by vipor

My 6th gear synchro was failing and I had the whole transmission replaced under warranty. This is most likely your problem, they should take care of it for you.

I had one tech blame it on shifting from 4th to 6th since it was more prevalent in that situation, but it shouldn't grind regardless. I pushed the issue with someone that actually could make decisions and it was handled. Took about a week.

I had the exact same problem. Two dealers refused to warranty my transmission because they said that I caused it by skipping from 4th to 6th. I have been driving manual transmission cars for over 20 years and have always shifted the same way. The third dealer I went to replaced it no problem.
This seems to be a problem that is popping up more and more. I now have a issue with the new trans. 2nd to 3rd grinds at low rpm. I hope this isn't a problem that I have to deal with for the life of the car.

CrownR426 · 09-24-2010, 03:53 PM

Quote:

Originally Posted by Dembflyr

I had the exact same problem. Two dealers refused to warranty my transmission because they said that I caused it by skipping from 4th to 6th. I have been driving manual transmission cars for over 20 years and have always shifted the same way. The third dealer I went to replaced it no problem.
This seems to be a problem that is popping up more and more. I now have a issue with the new trans. 2nd to 3rd grinds at low rpm. I hope this isn't a problem that I have to deal with for the life of the car.

2 to 3 happened to my boy DaineZ couple weeks ago..
he had to pay the dealer though it wasn't through warranty...

09-16-2010, 08:16 PM	#1 (permalink)
Big J Track Member Join Date: Jun 2010 Location: Memphis Posts: 905 Drives: 370z Rep Power: 16	6th Gear grind Has anybody with a 6 speed 370 experienced this? Mine started grinding 2 days ago about 75% of the time I put it in 6th gear? The car has 3k miles on it

09-16-2010, 08:44 PM	#2 (permalink)
nuts4nissan09 Base Member Join Date: Aug 2009 Location: Washington,NC Posts: 39 Drives: 09 370Z PW Sport MT Rep Power: 16	No grinding I have a '09 Sports w/ the 6 speed and have not had an issue w/ grinding in the 16,xxx miles I've put on the car. It is a little stiff going into 2nd when cold, but fine when warmed up. I don't baby the car, but I do try to be positive w/ my shifts and be kind to the trans. Not saying you aren't, just that some folks abuse their transmissions and then wonder why the synchros are shot. Some have reported grinding in 5th and 6th (especially at high speed-5th to 6th). The ones w/ the grind had their transmissions replaced under warranty. Time to go the dealer. Good luck.

09-17-2010, 01:40 PM	#6 (permalink)
Push370zzz Track Member Join Date: Jul 2009 Location: NE Age: 39 Posts: 649 Drives: cars Rep Power: 17	i grind into fif gear about 20% of the time __________________ Range Rover Sport Supercharged Nissan 370z Touring + Sport

09-21-2010, 01:10 AM	#9 (permalink)
CrownR426 A True Z Fanatic Join Date: Nov 2008 Location: South Korea Posts: 4,676 Drives: Manual Rep Power: 847	Strange... I've heard of 5th gear grinding but not 6th... __________________ Love + Hardwork + Passion RIP SVTRacer

09-23-2010, 11:58 AM	#13 (permalink)
vipor A True Z Fanatic Join Date: Aug 2009 Location: Euless, TX [ DFW ] Age: 42 Posts: 13,531 Drives: Nismo 09-0183 QAB Rep Power: 49	My 6th gear synchro was failing and I had the whole transmission replaced under warranty. This is most likely your problem, they should take care of it for you. I had one tech blame it on shifting from 4th to 6th since it was more prevalent in that situation, but it shouldn't grind regardless. I pushed the issue with someone that actually could make decisions and it was handled. Took about a week. __________________ 2009 NISMO # 0193 \| QAB \| Albums! \| 05.04.10 (Dynojet) 291.94hp/248.28tq Oil Cooler (DIY) \| Custom Headlights \| GTSPEC Braces \| F.I. Long Tube Headers

09-16-2010, 09:27 PM	#3 (permalink)
Big J Track Member Join Date: Jun 2010 Location: Memphis Posts: 905 Drives: 370z Rep Power: 16	Yea I guess it may be going to the dealer next week. I do not baby this car but I have put alot more harder miles on plenty other cars and never had a problem.

09-17-2010, 12:39 PM	#4 (permalink)
Supergoji Enthusiast Member Join Date: Dec 2008 Location: Westchester NY Age: 35 Posts: 311 Drives: Z32tt / Supra tt Rep Power: 256	make sure your clutch was installed and the pedal adjusted properly. it can cause the your trans to grind when you shift.

09-17-2010, 01:49 PM	#7 (permalink)
Big J Track Member Join Date: Jun 2010 Location: Memphis Posts: 905 Drives: 370z Rep Power: 16	It only grinds in 5th, I think if it were a clutch issue it would do it in more than that one gear. I'm gonna drive it a little longer bc I'm gonna look like a retard if I get to the dealer and it doesn't grind but like once of twice if at all.

09-21-2010, 03:06 PM	#10 (permalink)
Master_Ly Base Member Join Date: Jun 2009 Location: FL Posts: 176 Drives: 09 370Z Sport Rep Power: 20	Ouch. Sounds like what I went through just recently. Here's my thread: Notchy 3rd and 5th Gears Manual Transmission. I hope this will help you.

09-23-2010, 11:18 AM	#11 (permalink)
Big J Track Member Join Date: Jun 2010 Location: Memphis Posts: 905 Drives: 370z Rep Power: 16	Well oddly it has stopped grinding the past few days lol. Maybe it'll just all go to hell soon.

09-23-2010, 11:19 AM	#12 (permalink)
Big J Track Member Join Date: Jun 2010 Location: Memphis Posts: 905 Drives: 370z Rep Power: 16	I noticed that I usually drive1-2-3-4-6 gear, if I go from 5-6 then there is no grinding.

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