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M7 Z06 drivers: Notchy AM shifts?

 
Old 05-14-2019, 08:15 PM
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Big Lebowski
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Default M7 Z06 drivers: Notchy AM shifts?

Iíve notice shifting the Manual trans on my Z06, is kinda notchy to borderline stubborn in the AM (when itís cooler). Curious if anyone else experiences this? Sometimes I have to force into 1st gear and have trouble getting it to go smoothly into 2nd. Iíve even had it pop out of gear when launching from a stoplight, and occasionally need to push on the gear shift. It does seem to do better in the afternoon when it warms up. By comparison, my 2014 M7 Stingray was butter smooth but Iím wondering if the Z06 trans is ďbeefierĒ due to additional torque?
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Old 05-14-2019, 08:46 PM
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Higgs Boson
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no should not do that
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Old 05-14-2019, 08:56 PM
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ssmith512
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No, that doesnt right at all. My '19Z M7 does not exhibit said behavior.

EDIT: I will say my 2003 Cobra was always hard to get into gear when the tranny was cold. I eventually changed the tranny fluid to Redline tranny fluid. Never had a problem after that. Dont know if a simple fluid change might help your situation, but maybe something to research.

Last edited by ssmith512; 05-14-2019 at 09:06 PM.
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Old 05-14-2019, 08:56 PM
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chasboland
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Yeah I’ve had issues with this. Sometimes it doesn’t want to go all the way in so you have to sometimes trying to engage it twice. My only problem is getting it in the first year when stopped at a light or similar situation. I’ve Learned over three years of ownership when it is properly engaged. Kinda sucks..... what doesn’t happen all the time.
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Old 05-14-2019, 09:02 PM
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Originally Posted by chasboland View Post
Yeah Iíve had issues with this. Sometimes it doesnít want to go all the way in so you have to sometimes trying to engage it twice. My only problem is getting it in the first year when stopped at a light or similar situation. Iíve Learned over three years of ownership when it is properly engaged. Kinda sucks..... what doesnít happen all the time.
Yes, I get that too.
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Old 05-14-2019, 09:12 PM
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Bill Dearborn
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It is normal. The Tremec transmissions do that. I had the same behavior in both of my C5s and my C6Z. Usually goes away within a mile of the vehicle starting to move.

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Old 05-14-2019, 09:29 PM
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Originally Posted by Bill Dearborn View Post
It is normal. The Tremec transmissions do that. I had the same behavior in both of my C5s and my C6Z. Usually goes away within a mile of the vehicle starting to move.

Bill
Thanks Bill. Was hoping youíd have some insight. Greatly appreciated.
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Old 05-14-2019, 09:35 PM
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As Bill said the Tremic is like just inherent to cold. (remember the Rock Crusher).
If you have not changed the tranny fluid try it, I noticed a big difference.
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Old 05-14-2019, 10:15 PM
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Mr. Gizmo
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2017 2lz m7. Very smooth no notchy shifting cold or hot. The c6z was a little notchy below 20 degrees on the cold start.
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Old 05-14-2019, 10:20 PM
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Default Tough shifting when cold

Originally Posted by ssmith512 View Post
No, that doesnt right at all. My '19Z M7 does not exhibit said behavior.

EDIT: I will say my 2003 Cobra was always hard to get into gear when the tranny was cold. I eventually changed the tranny fluid to Redline tranny fluid. Never had a problem after that. Dont know if a simple fluid change might help your situation, but maybe something to research.
I had a similar problem to once I change the tranny fluid to redline it seem to help it a lot
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Old 05-14-2019, 11:48 PM
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mine does it too when cold
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Old 05-14-2019, 11:58 PM
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Originally Posted by Big Lebowski View Post
Iíve notice shifting the Manual trans on my Z06, is kinda notchy to borderline stubborn in the AM (when itís cooler). Curious if anyone else experiences this? Sometimes I have to force into 1st gear and have trouble getting it to go smoothly into 2nd. Iíve even had it pop out of gear when launching from a stoplight, and occasionally need to push on the gear shift. It does seem to do better in the afternoon when it warms up. By comparison, my 2014 M7 Stingray was butter smooth but Iím wondering if the Z06 trans is ďbeefierĒ due to additional torque?
There are a few different threads on this. It is nothing to worry about. Should consistently go away after a little heat in trans.
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Old 05-15-2019, 05:08 AM
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I thought my M7 1-2 shift was always notchy until I learned to grab and move the shifter 'the right way'. Cup the shifter in the middle of palm, move it back to neutral and then push it gently to left and then pull into 2nd...always a smooth transition. If you do pistol gripping, I felt shifter was notchy going into every gear as you are applying the unnecessary force.

Last edited by flying_vette; 05-15-2019 at 05:09 AM.
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Old 05-15-2019, 08:08 AM
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Originally Posted by flying_vette View Post
I thought my M7 1-2 shift was always notchy until I learned to grab and move the shifter 'the right way'. Cup the shifter in the middle of palm, move it back to neutral and then push it gently to left and then pull into 2nd...always a smooth transition. If you do pistol gripping, I felt shifter was notchy going into every gear as you are applying the unnecessary force.
I appreciate the insight, but technique isnít the issue. I have to be rather forceful to get it into first, so Iím already pushing into first with my palm (and yes the left), but ďpistolĒ gripping it to get it to go into 2nd.

I was at Spring Mountain the beginning of March and the manual shifting was very smooth by comparison (I had forgotten about that visit) and the mornings were quite chilly...thought most of my wheel time was in a ďwarmĒ car.

Iím going in for an oil change next week, so I plan to have my dealer take a look. I talked to the Vette tech, and he claims on the 17ís some manuals were not adjusted properly to the neutral position at the factory during installation. That and new trans fluid might do the trick. Weíll see.
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Old 05-15-2019, 01:02 PM
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GOLD72
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My M7 in my 2019 Z06 is the worst manual I have ever owned. Entering 2nd gear either on an upshift or downshift is usually notchy. When cold, it is literally two steps before you feel it truly in 2nd gear. I have ground the gears letting off the clutch several times in the past 12 months because it really wasn't in second gear. My 2011 ZR1 M6 and the M6s in my previous Z cars were far smoother. I am truly disappointed in this M7. I have 4 qts of Redline D4 that I plan to install soon in vain hope it improves shifting. Car has 6500 miles now.
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Old 05-15-2019, 02:21 PM
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Originally Posted by GOLD72 View Post
My M7 in my 2019 Z06 is the worst manual I have ever owned. Entering 2nd gear either on an upshift or downshift is usually notchy. When cold, it is literally two steps before you feel it truly in 2nd gear. I have ground the gears letting off the clutch several times in the past 12 months because it really wasn't in second gear. My 2011 ZR1 M6 and the M6s in my previous Z cars were far smoother. I am truly disappointed in this M7. I have 4 qts of Redline D4 that I plan to install soon in vain hope it improves shifting. Car has 6500 miles now.
As Bill Dearborn mentioned, itís not a new issue. My C6 Z51 does it when cold. Not hard to get into first, but notchy on the 1-2 shift when cold. Mine clears up after just a couple of miles. Until warm d up, I double clutch the 1-2 shift and itís smooth.
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Old 05-15-2019, 02:41 PM
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As others have mentioned, Redline D4 made this issue drastically better for me.
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Old 05-15-2019, 04:14 PM
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M7 has the same feel as my C6z, the first few 1-2 shirts are tough when the car is cold. Can just shift to third if you are driving around town and skip second.
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Old 05-15-2019, 04:34 PM
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I had this issue in both my '16 Stingray and current '15 Z06. In both cases, a switch to a MGW shifter and Redline fluid helped quite a bit.
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Old 05-15-2019, 09:20 PM
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Default Shifting

My 17 Z is the same as yours. When it's warmed up its perfect for me.I enjoyed driving with you at spring mountain we had a blast out there. Take care and enjoy your z. David S.
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