M7 Z06 drivers: Notchy AM shifts?
#1
Le Mans Master
Thread Starter
Member Since: Apr 2005
Location: West Burbs of Chicago IL
Posts: 6,712
Received 3,991 Likes
on
1,678 Posts
M7 Z06 drivers: Notchy AM shifts?
I’ve notice shifting the Manual trans on my Z06, is kinda notchy to borderline stubborn in the AM (when it’s 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. I’ve 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 I’m wondering if the Z06 trans is “beefier” due to additional torque?
#2
Race Director
Member Since: Jul 2007
Location: Texas Hill Country
Posts: 10,763
Received 2,379 Likes
on
1,238 Posts
no should not do that
#3
Melting Slicks
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.
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.
#4
Burning Brakes
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.
#5
Le Mans Master
Thread Starter
Member Since: Apr 2005
Location: West Burbs of Chicago IL
Posts: 6,712
Received 3,991 Likes
on
1,678 Posts
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.
#6
Tech Contributor
Member Since: Oct 1999
Location: Charlotte, NC (formerly Endicott, NY)
Posts: 40,089
Received 8,928 Likes
on
5,333 Posts
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
Bill
The following users liked this post:
6104696 (05-15-2019)
#7
Le Mans Master
Thread Starter
Member Since: Apr 2005
Location: West Burbs of Chicago IL
Posts: 6,712
Received 3,991 Likes
on
1,678 Posts
#8
Melting Slicks
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.
If you have not changed the tranny fluid try it, I noticed a big difference.
#9
Le Mans Master
2017 2lz m7. Very smooth no notchy shifting cold or hot. The c6z was a little notchy below 20 degrees on the cold start.
#10
Tough shifting when cold
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.
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.
#12
I’ve notice shifting the Manual trans on my Z06, is kinda notchy to borderline stubborn in the AM (when it’s 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. I’ve 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 I’m wondering if the Z06 trans is “beefier” due to additional torque?
#13
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.
#14
Le Mans Master
Thread Starter
Member Since: Apr 2005
Location: West Burbs of Chicago IL
Posts: 6,712
Received 3,991 Likes
on
1,678 Posts
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 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 “warm” car.
I’m 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 17’s some manuals were not adjusted properly to the neutral position at the factory during installation. That and new trans fluid might do the trick. We’ll see.
#15
Race Director
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.
#16
Team Owner
Member Since: Feb 2000
Location: Conroe Texas
Posts: 35,254
Received 865 Likes
on
608 Posts
CI 1-4-5-8-9-10 Vet
St. Jude Donor '03,'04,'05,'07,08,'09,'10,’17
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.
#17
Melting Slicks
As others have mentioned, Redline D4 made this issue drastically better for me.
#18
Burning Brakes
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.
The following users liked this post:
Big Lebowski (05-15-2019)
#20
Advanced
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.
The following users liked this post:
Big Lebowski (05-15-2019)