Grinding noise into 3rd
Thread Starter
6th Gear
Joined: May 2013
Posts: 6
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Grinding noise into 3rd
I recently purchased a 05 z51 stick shift corvette with only 14k miles. I took the car out of town and noticed a problem..... when at a high rpm trying to shift from 2nd to 3rd i will get resistance and a grinding noise where it doesn't want to go into 3rd, but if I shift from 2nd to 3rd at a low rpm around 2.5k I do not encounter this problem. Any ideas what it could be and how I can go about resolving this issue?
Melting Slicks
Joined: Jul 2007
Posts: 2,116
Likes: 6
From: Waynesville NC
Pro
Joined: Jun 2005
Posts: 693
Likes: 2
From: Los Angeles CA
my '05 z51 does it if i am trying to shift quickly from 2nd to 3rd as well, like a slight teeth clink.
i think it happens for me when shifting fast under load, not necessarily high rpm.
maybe it's my lack of shifting coordination, although i've been driving stick 24 yrs and have no such problem on my other cars (but all were/are 4 banger baby shiftbox, so can't compare to these t56 rock crushers, lol).
anyway, transmission developed a constant grinding problem at ~100,000 miles, so had to have it rebuilt. shop found a broken ring or something that was causing the constant grinding and it was back to normal after the rebuild.
even with the rebuilt trans it would still clink into 3rd if i try to shift fast, so assume your transmission is fine.
you can read up on the "ranger" shifting method for when you want to shift fast, or just remember not to lightning shift into 3rd to let the synchros do their work easier (no real need unless drag racing at the strip, which i don't do).
i think it happens for me when shifting fast under load, not necessarily high rpm.
maybe it's my lack of shifting coordination, although i've been driving stick 24 yrs and have no such problem on my other cars (but all were/are 4 banger baby shiftbox, so can't compare to these t56 rock crushers, lol).
anyway, transmission developed a constant grinding problem at ~100,000 miles, so had to have it rebuilt. shop found a broken ring or something that was causing the constant grinding and it was back to normal after the rebuild.
even with the rebuilt trans it would still clink into 3rd if i try to shift fast, so assume your transmission is fine.
you can read up on the "ranger" shifting method for when you want to shift fast, or just remember not to lightning shift into 3rd to let the synchros do their work easier (no real need unless drag racing at the strip, which i don't do).
