JakeC6Racing

I've had my 2011 Grand Sport for a little less than 2 months now and it's happened about a dozen times where I go to shift into 2nd, it seems to engage, I let off the clutch and give it gas and it pops into neutral. No grinding or anything, but it feels like it almost hits some sort of rubber barrier going into second.

I was thinking of purchasing a MGW shifter to see if this could remedy the problem, but before I go spending $400, I wanted to see if any of you had this experience and were able to fix it.

Thanks!

Boomer111

Used car problems...

I would fear a transmission problem more than the shifter, just a uneducated guess though.

Sorry for the problem with the new purchase.

let us know what the final fix is.

ZR1Cat

A tranny can 'pop out' of gear when the synchronizers are worn. There may be other causes in your situation.

JakeC6Racing

Let me just clarify that I've driven the car for over 3,000 miles in less than two months. I do drive a good amount, so a dozen times probably comes out to 1% of the time. It also only happens at lower rpm's.

Cybernetic Medic

The first thing I would do is check the adjustment of the linkage and do the ranger method on the clutch fluid.

Rusler John

Years ago, it would be the synchros causing that. Today, I have no idea. Get it checked first before you go spending money blindly.

Racer86

or bent shift fork, one or the other!

Wakemaker89

I'm having the exact same issue in my 12 GS, had it 2 months and put about 2500 miles on it. Tried the ranger method clutch fluid clean as my fluid was a nasty black from what I assume is 50k miles without a change. Hasn't resolved it for me either still pops out every so often. I bought an MGW to put in but before I swap it out I will probably take it in to the dealer and see if they have heard of this issue before.

LS3Knight

Same thing on my 2010 base. Rarely happens so I always assumed it was something I'm doing.

Wakemaker89

I don't experience it in any other gear and am wondering if it may have something to do with the CAGS system. I very rarely ever see the 1-4 Light up in my dash. I've ordered a skip shift eliminator to see if that makes more of a difference than the new clutch fluid.

racerx3317

Havent had that happen to me in the Z but it used to happen in my old Mustang. It used to happen once in a while then it got progressively worse. More than likey it's a bent shift fork or a worn shift fork pad. An MGW won't help. Fluid change might.

JakeC6Racing

Let me know how the MGW works for you!

You could be on to something there because I purchased a CAGS skip shift elimator too. I never looked to see if it only does this when the 1-4 light is on

Cybernetic Medic

That's an interesting point. If the second gear lockout solenoid ,.i.e CAGS, was binding up it might let you shift to second but impeade a full engagement.

Kurt D

Popping out of 1st or 2nd at low rpms was a common issue in F-body T-56s with worn out syncros or bent forks, often caused by a bad shift or few while at WOT. My friend's SS did it, had the transmission rebuild and upgraded = problem solved. For the record his started out doing it once in a blue moon but got more common until it was a pain. I haven't read about it recently with newer T-56 and 6060s but I'd bet the issue is the same. Bring it in while it has warranty and have them fix the transmission.

2k Cobra

Had the same problem with my 01 Z T 56.

I changed oil, put on an aftermarket shifter and it did the same thing.

I think the guys in the above posts nailed it. Mine had bad synchros, blocker rings, bent forks and other stuff. (Car was never driven hard)

If your factory warranty is still good, have a trusted dealer check it out..

Best of luck, 2k

theblue

my money is on the synchros also, in my race car it normally starts popping out of 4th, then it starts grinding a bit, then it pops out in other gears and it's game over. luckily this is not for a corvette and transmissions are super cheap.

icntdrv55

Just out of curiosity, wouldn't a transmission problem be covered under the longer 100K mile power train warranty?

LS3Knight

I noticed today as it happened again, that I was about to hit 15 mph when I shifted to 2nd, which is when the 1-4 skip initiates. If 1-4 shift light is on, you can't shift into 2nd. I'm thinking that when you shift into 2nd as the shift skip comes on, it pops out of 2nd.

JakeC6Racing

I installed my MGW shifter and lower shift box yesterday after work. The shifts are much more precise and crisp and no popping out of second gear. With my stock shifter it almost felt as if there was some sort of rubber that was stopping it from fully engaging second gear, causing it to pop out when I hit the gas. When I removed my stock shifter I noticed a good amount of small rubber shavings at the base of the shifter. I feel like this could have had something to do with my second gear issue. I'll do some more driving this weekend and see if second gear continues to hold up well, but I think it's ok. My 2-3 shift under hard acceleration is also significantly easier and more precise. Very happy with my purchase

hisvett

Good to know; I'll keep this filled away. I would have bet on the 2nd gear synchro being bad myself......mine has never been as smooth as the other gears, mostly when first starting out in the morning.