Batterycharger

I have a slight grind from first to second gear. I was told it would get better with mileage. I am now at 3500 miles and it might be a little better but still doing it. I have read that some of my C7 brothers and sisters have solved that problem with the installation of a MGW short throw shifter. If that is the case could my issue be an out of adjustment factory shifter? I have purchased a MGW, but have not put it in, due to concerns about the factory warranty on the car. This is the only beef I have my my C7 and would like to see the problem go away. Any thought's or advice would be appreciated. thanks

Kracka

Aligning the shifter made a nice improvement in my car, as did replace the factory rubber bushings and transmission fluid. Here are a few of my related threads:

https://www.corvetteforum.com/forums...d-service.html

https://www.corvetteforum.com/forums...7-shifter.html

TNSQUIRE

I would get it checked under warranty before you put the MGW in.

Bill Dearborn

Are you disengaging the clutch completely when making the shift? Cold transmissions will nibble the gears on the 1-2 shift for a half mile to a mile after the engine is started and the car starts moving.

Bill

Neil Baker

Mine was doing this and my dealer found the transmission 1/2 qt low....and yes, it made a difference!!!!

dbaker

Several folks in other posts about this have reported the trans being low from the factory.

I changed my fluid at 700 miles or so,and it was about 1/3 to 1/2 qt low.

Sometimes a better fluid will help also.

\db2

Batterycharger

My C7 is at the dealer now. They said they want to align the shifter. I told them to check the trans fluid level as well. Should have back this afternoon. keeping my fingers crossed. Will let you all know.

eboggs_jkvl

When I picked up my C6, I moved the car 10", stopped, backed up and asked for the mechanic. I said the clutch chattered. I got a new clutch and the supporting pieces.

Your NEW car should not grind gears, period. There is NO break-in period for the gear grinding to go away. They need to fix the issue.

Elmer

Batterycharger

Getting ready to pick up car up at the dealer. They said my trans lube was full and that the alignment of my took care of the problem. Will let you know.

cv67

x2 a trans either works right or it doesnt.

VinceBlack

Are they doing this under warranty?

Batterycharger

Yes they are doing under warranty car only has 3600 miles on the clock. The good news is that it is better. Still a little (slight) grind when cold. Think I am going wait a little longer and see.

VinceBlack

Good deal, I'm glad there was some resolution to the situation. I'm gonna have them do the same thing with mine and see if we can't eliminate it. Fluid swap is probably in order as well.

LivinTheDream

Mine just hit 3,100 miles and the MGW went in today. Amsoil synthetic at 700 miles helped some, and I considered adjusting the stock shifter since it's an easy thing to do. Glad I swapped it out instead, it's a small price to pay for a dramatic change in shift quality. The 1-2-3-4 patterns are a flick of the wrist.

Citation

This is perfectly normal. Don't beat yourself up about it.

Batterycharger

Went ahead and installed the MGW shifter. WOW at a difference. Helped the first to second shift as well. Where "other than the dealer" would you suggest to get the trans fluid changed to synthetic? Thanks

TEXHAWK0

In your garage... Not a difficult job to drain and change the transmission fluid. You just need a pump or method to refill.
I put the fill tube through the fluid cap along with a tube to my air compressor so I could just use compressed air to push the fluid up and into the transmission and differential.

vtmike24

My '14 Z51 M7 is at the dealer right now for the same issue. Mine was difficult to get into 1st and reverse and would periodically grind when shifting from 1st to 2nd. Still waiting to hear back. This is the 3rd time I've taken it to the dealer. The first two times they said they couldn't replicate the problem.

vtmike24

Once again the dealer said they can't replicate the problem. They told me their GM Certified Master Mechanic said "it shifted beautifully". I laughed out loud when they said that. I have driven a manual my entire life and never had any issues. I know I'm not crazy. Thinking about buying the MGW shifter to see if it helps.