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new 08 cold shifting grinding?

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Old 11-15-2007, 02:03 AM
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ranger dave
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Default new 08 cold shifting grinding?

can anybody help with this please ? when my car is cold, starting off i grind gears going from 1-2,2-3? does anybody else have this? seems to be ok when warm. thanks
Old 11-15-2007, 03:11 AM
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chevyc6z51
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Does it ever get stuck?(the shifter)
Old 11-15-2007, 08:03 AM
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C6~Missle
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Mine does this too.. Just drive slow and easy until the fluid warms up. I usually skip 2nd and go right to 3rd. You can also double clutch until it warms up.
I plan to change fluids in the near future.
Old 11-15-2007, 08:11 AM
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Terviseks11
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Yep, it happens on mine, too. Kinda frustrating. Once it warms up, though, it shifts smoothly. Is there a better transmission fluid out there than what comes stock with the vehicle?
Old 11-15-2007, 08:49 AM
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ATC
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Mine's the same way, I think some Red Line or Amsoil is needed.
Old 11-15-2007, 09:34 AM
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pTr73
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Are you releasing the clutch a bit prematurely? Wait until you have the shifter fully in its next sequential gear before you start releasing the clutch.
Old 11-15-2007, 09:42 AM
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JohnnyP
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I have the same experience. A little disconcerting. It finally starts to smoothly shift after about 20 minutes of driving.
Old 11-15-2007, 09:50 AM
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SpdWhite
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Originally Posted by C6~Missle
Mine does this too.. Just drive slow and easy until the fluid warms up. I usually skip 2nd and go right to 3rd. You can also double clutch until it warms up.
I plan to change fluids in the near future.
Exactly:

I don't know where you are located but in colder climates, like New England where I am, you really need to be gentle with the transmissions until the oil is warmed up. This is especially noticable in lower gears and even more pronounced in the Z51 which I have.
Old 11-15-2007, 10:02 AM
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JSB LS3
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Originally Posted by SpdWhite
Exactly:

I don't know where you are located but in colder climates, like New England where I am, you really need to be gentle with the transmissions until the oil is warmed up. This is especially noticable in lower gears and even more pronounced in the Z51 which I have.
Mine doesn't grind, but it's clunky and notchy as all hell in the cold for the first 5-10 minutes.
Old 11-15-2007, 10:07 AM
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rsmithuf
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Same here in my 08.
Old 11-15-2007, 10:36 AM
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EZ28
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Same here, either I double clutch or go to third or fourth [can you say skip shift]. [I only have 700 miles].
Old 11-15-2007, 10:46 AM
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AutoCutter
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I have it from 1 to 2, and 2 to 3. Once the car warms up eveything returns to normal. I had this problem with the 05' (2-3 shift) and changing the trannie fluid didn't seem to help.
Old 11-15-2007, 10:59 AM
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corvettetimmy
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Mine grinds shifting into 2nd and 3rd when its cold..

also it has hung in first gear 3 or 4 times.
Old 11-15-2007, 11:01 AM
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JJWVETTE
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Been that way since the begining of time I skip 2nd and go to 3rd untill it warms a bit
Old 11-15-2007, 11:30 AM
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Wayne O
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Originally Posted by ATC
Mine's the same way, I think some Red Line or Amsoil is needed.
Not that going-to different fluid wouldn't help but because he shouldn't need to do this. I put Royal Purple in my transmission but not because of any problems...I just wanted to.

A new 2008 with the supposedly vastly improved transmission should not grind. Take it to the dealership and have them fix it!
Old 11-15-2007, 11:54 AM
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C6~Missle
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Originally Posted by Wayne O
Not that going-to different fluid wouldn't help but because he shouldn't need to do this. I put Royal Purple in my transmission but not because of any problems...I just wanted to.

A new 2008 with the supposedly vastly improved transmission should not grind. Take it to the dealership and have them fix it!
Relax.. it's not a grind.. it's just very notchy and it's common on the 08's. Once it warms up, it's perfectly smooth. Seems the fluid being used at the factory is too thick a viscosity. Easily fixed with new fluid.. Better than having the dealer try to diagnose or tear into a perfectly fine tranny.
Old 11-15-2007, 12:48 PM
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TR-6060
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Originally Posted by ranger dave
can anybody help with this please ? when my car is cold, starting off i grind gears going from 1-2,2-3? does anybody else have this? seems to be ok when warm. thanks
Mine doesn't grind, but it is notchy and rough on the 1-2 and 2-3 when totally cold. Based on forum comments, I just double clutch these shifts until the tranny starts warming up (doesn't take too long). Everything is smooth with the double clutch approach.

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Old 11-15-2007, 01:03 PM
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08 Vett
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Every tremec I've had is notchy until it warms up! IF it don't get better after warm up, something is wrong.
Old 11-15-2007, 01:19 PM
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mpuzach
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If indeed the gears are "grinding" as you've described, I'd have to say that something is seriously wrong. "Notchiness" when cold is one thing (no big deal), but actual grinding is not normal.
Old 11-18-2007, 10:19 PM
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C6Coupe
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Same thing here ,2nd is hard to get into until it warms up then everything is fine, I just go 1 to 3 for the first couple of shifts


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