Tremec Missed 1-2 shifts, Notchy

[Orange Krate]

My Orange Krate is back home from the dealer. You all are going to love this one. I took in ALL of the documentation I could from Camaro5.com and sat with the Service Manager. He was very nice and earnest. He agreed with me that judging by the number of complaints on Cam5 that there is a problem. His service technician tried to duplicate my complaint and couldn't do it. I said I understand because it is really regularly irregular. The fluid was supposedly good. I am going to inspect it closer tomorrow when I have time. I will be doing my own transmission oil assay and reporting the results here and to the dealer. The Service Writer was kind enough to give me a paper explaining the function of the Skip Shift operation. When I explained to them I understood and that I drive a stick everyday, 120 miles a day plus heavy equipment, they got a clue...it ain't me. I have scanned the document they gave me because I haven't seen this one before (PDF Attached Below). It is a good reference directly from GM.

So bottom line...I wait until an official TSB comes out. In the meantime...drive em if you got em! WARRANTY!

[B6pilot]

Well I picked up the car yesterday and they said they couldn't find anything wrong with it. On the drive home It grinded 4 times while I was stuck in traffic. The dealership had my car for a week and couldn't find anything...I can't believe it! I made a quick video today to show whats going on. I was on my block shifting it around 10 mph less then 2000 rpm's. There is no way this is normal! I'm starting to get pissed of with this thing...


Here's the video if anyone is interested..

[ssmike]

Wow! That's pretty bad! How the heck didn't they duplicate that? Well at least now you have a video to show them! Sounds like the clutch isn't fully disengaging to me. Good luck with it!

[B6pilot]

Originally Posted by ssmike

Wow! That's pretty bad! How the heck didn't they duplicate that? Well at least now you have a video to show them! Sounds like the clutch isn't fully disengaging to me. Good luck with it!

It actually got worse since they replaced 2nd gear and syncros. I told them the same thing about the clutch, but I'm a customer who knows nothing apparently.

[ssmike]

Time for a complete swap out, tranny and clutch, IMO!

[B6pilot]

I agree, but they are more concerned with me having a rental car for a few days then actually fixing my car. I might have to try that GM number next...I understand the warm up thing, but I can't even get down the road slow without it grinding!

[Russell James]

Originally Posted by B6pilot

Well I picked up the car yesterday and they said they couldn't find anything wrong with it. On the drive home It grinded 4 times while I was stuck in traffic. The dealership had my car for a week and couldn't find anything...I can't believe it! I made a quick video today to show whats going on. I was on my block shifting it around 10 mph less then 2000 rpm's. There is no way this is normal! I'm starting to get pissed of with this thing...


Here's the video if anyone is interested..

I think the trans is ok, but sounds like someone has gas

A grind that bad almost seems like the clutch isn't dissengaging some times. Ussually if the synchros are wiped out, it will grind just a bit on every shift. That seems like a no clutch release grind. I'd suspect the
hydraulic slave to possibly have issues. Which can be frustratingly intermittent.

Try to swing by the dealer when it is acting up.

[B6pilot]

Originally Posted by Russell James

I think the trans is ok, but sounds like someone has gas

A grind that bad almost seems like the clutch isn't dissengaging some times. Ussually if the synchros are wiped out, it will grind just a bit on every shift. That seems like a no clutch release grind. I'd suspect the
hydraulic slave to possibly have issues. Which can be frustratingly intermittent.

Try to swing by the dealer when it is acting up.

The service manager drove it and told me I needed to put 20,000 miles on it before it would stop doing that! I'm going to drop by on Monday after work and show him my video proof. Feel free to comment on the video, he will definitely see it!

[Russell James]

Originally Posted by B6pilot

The service manager drove it and told me I needed to put 20,000 miles on it before it would stop doing that! I'm going to drop by on Monday after work and show him my video proof. Feel free to comment on the video, he will definitely see it!

I've owned many Tremec T56 and TR6060 equipped cars, Vettes, F-bodies, GTO, '10 Camaro SS. None of them have grinded on the 1-2 shift like that.

At worse, they are just a little notchy when cold. But after a couple miles pretty much smooth out. And that little notchiness when cold can be helped by using a premium synthetic lube like Royal Purple Synchromax.

That sounds like way more than a little notchiness that is common to these trans. That sounds either like a clutch that is intermittently not dissengaging fully (slave cylinder problem), or wiped out synchros which then damages the blocking ring and gear. If it's intermittent, I'd lean toward a clutch problem. Wiped out synchros will grind on every shift into that gear.

[Alain]

Wow man!! I can't wait to hear the service manager's answer when you show him the video.

[ssmike]

Originally Posted by B6pilot

The service manager drove it and told me I needed to put 20,000 miles on it before it would stop doing that! I'm going to drop by on Monday after work and show him my video proof. Feel free to comment on the video, he will definitely see it!

How the hell does this man still have a job as service manager?

[B6pilot]

Originally Posted by ssmike

How the hell does this man still have a job as service manager?

He's just lucky I guess! My plan is to drop by on Monday, show him the video, tell him he owns it until he replaces the clutch, pressure plate, slave cylinder, tranny, ect.They also tried to touch up my spoiler without taking it off. I took it off and took pictures of all the damaged they didn't bother to fix. I won't even get into the paint issue I had on the hood. Looks like they painted it and immediately threw dirt in the paint!

[togtaker]

got my car back from the delaer Friday with the new style syncro (black carbon fiber), syncro slider assembly, blocker ring and second gear. All those parts are listed earlier in this tread. Does not grind now, shifts much smoother than it ever did, seems like a slightly long throw 1st to 2nd, but maybe that just me after not driving it for almost 3 weeks (one week at the dealer, two weeks of bad weather). I don't think my issue had anything to do with the clutch.

[booenson]

I made this thread a while ago to complain about the notchiness of 2-3.

http://www.camaro5.com/forums/showthread.php?t=97186

I'm wondering now if the two problems are related to each other? To sum up my problems, under any rpm, any load, warm or cold, my M6 will occasionally have a slight nibble between 2 and 3, never any other gear, 4-3 is fine as well. What I'm talking about is when you have the shifter centered and are about to put it into third, about halfway through theres a little notch that I can definitely feel, and can also feel a bit when the car is off. It definitely makes an audible noise when it happens.

When I took my car in for the spoiler TSB, I mentioned this to my service advisor and he said to give it a few more km's to break in a bit more. Just for shits and giggles, I also test drove a 2SS with ~12 000 km's on it, and sure enough, it did the same thing.

For the record, I'm absolutely fine with my clutch. It's a weird one but it hasnt given me any problems yet, knock on wood.

I'd like to upgrade to an MGW shifter but I don't know if that will solve the problem, or simply amplify it. I also wouldn't mind trying some Mobil 1 ATF however I'm wondering about warranty issues down the road regarding the tranny and/or clutch.

Originally Posted by togtaker

got my car back from the delaer Friday with the new style syncro (black carbon fiber), syncro slider assembly, blocker ring and second gear. All those parts are listed earlier in this tread. Does not grind now, shifts much smoother than it ever did, seems like a slightly long throw 1st to 2nd, but maybe that just me after not driving it for almost 3 weeks (one week at the dealer, two weeks of bad weather). I don't think my issue had anything to do with the clutch.

Can you maybe post up your service report or even just the part numbers used? What did you have to complain about first before your dealer did this repair?