Manual 7 speed shifting issues survey - Page 2

Poll: Do you have any shifting issue with your 7 speed manual transmission?

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Thread: Manual 7 speed shifting issues survey

  1. #16
    Senior Member Mobius's Avatar
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    I really enjoy the M7, but the one little annoyance that I've learned to live with is the occasional RPM hold (some have called it rev-hang) that Rev Match performs during the 1-2 upshift.

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  2. #17
    Senior Member meyerweb's Avatar
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    Like Elegant, I haven't had an issue with cold shifts, either. It's a little bit stiffer when cold, but so is pretty much every car I've owned. But I never feel like I'm forcing or struggling with the 1-2 shift at all. And that includes cold starts in 20 degree weather, with the car sitting outside for several hours before hand.
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  3. #18
    Senior Member docjb's Avatar
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    No issues. Love the M7. Cautions about cold shifting are correct. With practice, no issues getting into 7th gear (used only for cruising 70 MPH in Tour Mode on interstate).
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  5. #19
    Senior Member texhawk's Avatar
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    I have used a Core Shifters modified Hurst for over 6 years, first in my C5 and transferred to my C7, and have found it to be the best combination of short throw and minimal shift effort. Has a more positive feel for making sure gears are fully engaged. With this shifter, never a problem.

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  6. #20
    Senior Member Fleet's Avatar
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    With about 40K on my C5 Z06 I had a valet tell me I had a problem, the shifter popped out of first gear when he let out the clutch. Ii never ever had it happen to me before or since. I sold the car with 60K+ miles. It was the Valet inability to put it past the notch and into gear not the car.

    Conversely, I have had the shifter pop out of gear on me (1st gear at least twice and once out of second) in my current car. With 20K+ miles on the car, is it me or the car? Should I go back to the gym? Should I even worry?

    Seriously, I like the new car's shifter. It is appropriately notchy (Less so then the Z06 which is probably the root of my problem). The dual disk clutch however will mildly shutter if I don't engage promptly. Although it’s a better clutch, I prefer the single disk clutch on all my previous cars.

    I shift from gear to gear all the way to seventh with little jerkiness (with or without rev-matching on). Plus, this is also the quietest Vette tranny I have ever owned.

    All-in-all I have to say this is my favorite manual Vette transmission. I connect better to the car with this tranny then any I’ve owned in the past. And any problem I've noted has more to do with the person doing the shifting then the M7. So, count me as a "NO" vote.

    I am not sure why the marketing guys don't promote the M7 more. The M7 gives you more control over the car and AFM then the Auto. I believe the M7 in the Z06 does not provoke the Gas Guzzler tax as well (may be wrong on this one). None the less, experiencing any variation from the posts here ( other then infrequent querkiness of the rev match) should mean a trip to the dealer because its not normal.
    Last edited by Fleet; 06-15-2017 at 07:34 AM.
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  7. #21
    Junior Member Mark9542's Avatar
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    I only have 4K miles, but I have never had any problems.

  8. #22
    Junior Member djnice's Avatar
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    Difficult to shift into 1st since day one. Sometimes you need to push through two notches before first is fully engaged or it will pop out.
    Miss shifts on track when going to 5th. Basically trying to avoid 7th and hit 3rd instead of 5th.
    Pops out of 5th on hard braking on the track.
    Fluid burps on track when it gets hot. After fluid burp there is vacuum in trans after cool down.
    Dealer thinks all this is probably normal.

    Lots of rattles and drive train slop when on/off accelerator driving around town.

  9. #23
    Senior Member meyerweb's Avatar
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    There is a shifter alignment procedure (see attachment) that the dealer or you (if you're even moderately handy) can perform that might help with the popping out of gear and difficulty engaging first. Haven't heard anyone else talk about fluid burping. Definitely don't think it's normal. I'd find another dealer to talk to.
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  10. #24
    Senior Member VietnamVet's Avatar
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    Manual 7 speed shifting issues survey

    No problems at 21,000 miles. I do occasionally get the wrong gear. I've learned to check the gear indicator in the DIC before I let the clutch out, if I have any doubt about which gear I am in. I very much like the manual transmission and feel it is a continuation of all the classic Corvettes in years past, including my own '69 with a 4-speed. In my youth, no one would ever admit to driving an automatic.
    Last edited by VietnamVet; 06-29-2018 at 05:14 PM.
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  11. #25
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    2017 with 6500 miles. I've driven manual transmissions for over 40 years in dozens of vehicles. In a performance vehicle I won't buy anything else. That being said I find the shifter/transmission to be quite a letdown on my Z51. On my other vehicles I might miss a shift once or twice a year if at all. In the Vette if I take a drive of 40 miles or more and don't miss a shift I'm amazed. Installing an MGW shifter and precisely aligning it helped some as did putting some miles on it. The first 4 gears are not a problem. It's 5th through 7th that cause problems especially if I skip gears. It seems to me most of the problems are caused by an overly strong center detent and 4 gates to deal with. The only way I've found to eliminate all missed shifts is to be very deliberate, very slow, and check the gear indicator. Unfortunately that puts quite a dent in driving pleasure. I still wouldn't trade it for an auto though. If Chevrolet ever offers a twin clutch manual I would definitely consider that!

  12. #26
    Member TucsonJim's Avatar
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    Just put the MGW into my Z06 M7. Love it. Short throws are crisp, but 6-7 and R require deliberate and more forceful pressure. Coming out of 7, wants to slot to 4. This was also the case pre-MGW, but now it takes more lateral push to hit that rightmost gate.
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  13. #27
    Senior Member JoeCT's Avatar
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    Quote Originally Posted by meyerweb View Post
    There is a shifter alignment procedure (see attachment) that the dealer or you (if you're even moderately handy) can perform that might help with the popping out of gear and difficulty engaging first. Haven't heard anyone else talk about fluid burping. Definitely don't think it's normal. I'd find another dealer to talk to.
    I had issues like grinding into 2nd cold or warm until corvette tech did this and since then, it's been very good. The way I would expect it.
    2019 SGM Z06 M7 Coupe

  14. #28
    Member iclick's Avatar
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    I had occasional very slight grinding and/or balkiness from 1>2 when cold at first, which is common with the Tremecs, but changed fluid last Jan. to Redline D4 synthetic and that seems to have gone away. It at least is an improvement, but never was a glaring fault. Might be just breaking in, though. Never had it pop out of gear. Love the M7 after owning an A8 with TC issues. I voted "no."
    Last edited by iclick; 06-30-2018 at 11:20 AM.
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  15. #29
    Senior Member Havingfun's Avatar
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    15,000 miles - no issues whatsoever. I really enjoy holding onto that stickshift, top down, blowing down the road....yeah!!!
    meyerweb and CHeckk6 like this.

  16. #30
    Junior Member Black14Z51's Avatar
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    I too have had issues with 1st gear popping out and the occasional grind when going to 2nd. I thought it was just breaking in too, I only have 15k on my ‘14 Z51. Glad to hear this can be fixed!

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