Seeking Advice on 5th gear grind/6MT questions
06-04-2014 | 11:13 PM
#16
^^I can't say with certainty. Maybe some longer time owners can chime in on whether there were any internal revisions in the MT with later model years.
I mainly switched to the MT85 early on to try to cure an annoying whine in warmer weather. The sound lost some amplitude but is still present. When it's 60F or cooler outside, the noise is barely audible.
I mainly switched to the MT85 early on to try to cure an annoying whine in warmer weather. The sound lost some amplitude but is still present. When it's 60F or cooler outside, the noise is barely audible.
AMSOIL Manual Transmission & Transaxle Gear Lube 75W-90
06-07-2014 | 06:04 AM
#17
Registered User
Joined: Jun 2014
Posts: 1
Likes: 0
From: Orlando, FL
Hello all,
I am in the market for a G37S sedan, one with a 6 speed manual transmission. After scouting much of the internet with 370z/g37 5th gear grinds, I am inconclusive on a few areas.
I test drove a 2012 G37S sedan and experienced this 5th gear grind, 2 out of the 3 times I put the car into 5th. At first I apologized to the sales guy, till I realized after the second time it wasn't me
. I asked him why and he said its because the car has been sitting for a while...which led me to google the issue. I am not new to manual cars, my last car was stick and its not user error here.
Its under warranty with only 40k miles. But what bothers me is that its really inconclusive if the problem has been fixed. All I read about is the trans being replaced numerous times...
So owners, was/is there a updated transmission that fixed this issue? I do not want to dump $30k+ into a car only to have a serious powertrain issue, that will resurface eventually (and more importantly), after warranty.
Thanks in advance.
I am in the market for a G37S sedan, one with a 6 speed manual transmission. After scouting much of the internet with 370z/g37 5th gear grinds, I am inconclusive on a few areas.
I test drove a 2012 G37S sedan and experienced this 5th gear grind, 2 out of the 3 times I put the car into 5th. At first I apologized to the sales guy, till I realized after the second time it wasn't me
. I asked him why and he said its because the car has been sitting for a while...which led me to google the issue. I am not new to manual cars, my last car was stick and its not user error here.Its under warranty with only 40k miles. But what bothers me is that its really inconclusive if the problem has been fixed. All I read about is the trans being replaced numerous times...
So owners, was/is there a updated transmission that fixed this issue? I do not want to dump $30k+ into a car only to have a serious powertrain issue, that will resurface eventually (and more importantly), after warranty.
Thanks in advance.
I'm nauticapinoy from tsxclub.
06-11-2014 | 02:11 PM
#22
Registered User
Joined: May 2014
Posts: 25
Likes: 5
From: Western NC
They also replaced the throwout bearing and the clutch slave cylinder. Said my clutch was in excellent condition (35k miles).
Post op: It shifts much smoother than the previous gearbox, regardless of gear and the clutch seems to work better as well but that could easily be placebo.
If there's any question and your MT car is under warranty, take it in.
Trust me you won't want to pay for this repair out of warranty.
2¢
06-11-2014 | 08:23 PM
#23
^I was surprised that they replaced my tranny. The only time that I had any gear grind going into 5th was when it was cold. Once the oil warmed up, it shifted smoothly. The dealer told me to leave it with him and he would have one of is techs check it out in the morning. They did and confirmed my findings. So now with a new tranny, It's like having a brand new car.
03-16-2016 | 03:18 AM
#26
Registered User
Joined: Jun 2015
Posts: 156
Likes: 4
From: YYC
I'm experiencing this now, car is at 12x xxx KM...
09 6mt will bring it to my mechanic and see what takes place. Will the delearship still replace it for free? I think I still have powertrain warranty left on this car.
09 6mt will bring it to my mechanic and see what takes place. Will the delearship still replace it for free? I think I still have powertrain warranty left on this car.
04-03-2016 | 05:05 PM
#27
Registered User
Joined: Sep 2015
Posts: 120
Likes: 11
From: Atlanta
It's definitely the syncro. I had the same problem a few years back and pinpointed it out, then took it to the dealership. Had a hard time trying to tell the dense a$$ mechanic AND master mechanic that all i needed was a new trans, or syncro if they wanted to dive that deep. A$$hat replaced it AND the clutch and flywheel, talking bout it was "standard troubleshooting procedure".
Either way, you're going to want to replace it. The sooner, the better.
Either way, you're going to want to replace it. The sooner, the better.
12-24-2019 | 03:32 PM
#28
Registered Member
Joined: Mar 2014
Posts: 50
Likes: 11
I've been experiencing the 5th gear grind for a couple of years now. Didn't think it was a big deal, but today while driving I think the tranny finally went. I lost 6th gear, but still had 5th. After getting off the freeway I tested out the other gears. I had 3rd, 4th, and 5th. 1st, 2nd, and 3rd gear were just spinning like neutral, and neutral stalled out like it was in gear. After driving some more, the problem seemed to fix itself for a bit, but shortly came back. It seems like depending on how I'm driving the gears will shift in and out of place. If it goes out of place, I can kind of get back on track by moving the shifter through the different gear positions. Am I for sure looking at a tranny replacement? Can someone explain what's going on inside the transmission?
12-24-2019 | 10:29 PM
#29
So I can't explain it but I had that happen in my 944 a long time ago. On that car at least it was the shift linkage that had gone causing me to lose some gears completely but still have a few. I was 17 I think and had no idea what was happening, made it half way across town before I had to call a tow because I lost everything. My mechanic who is a local independent was able to fix it relatively cheaply and it held up just about forever. I think I took it back in once for that same issue.
12-24-2019 | 10:30 PM
#30
Also this thread is making me want to check what the timeframe for transmission warranty on my car is. Doubt I'm still in it since mine's a 2011 but I kind of hope if this issue is going to happen it comes up and I can get it replaced under warranty. Just hit 42k miles I think.
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