[Z06] All gears shift weird.
Thread Starter
Le Mans Master
Joined: Jul 2009
Posts: 9,526
Likes: 12
From: Los Angeles California
All gears shift weird.
OK, I've done a search for this and didn't really see much. I'm hoping changing the fluid will solve this problem:
When the trans is cold, most of the time it will shift fine... Meaning it will snap right into each gate.
But for some reason, as soon as I've gone a couple miles or it gets hot, it seems I really have to push the shifter into the gate. It doesn't grind at all. Just feels like there's something pushing back and instead of a click going in, it just kind of "smooshes" in.
Any ideas?
When the trans is cold, most of the time it will shift fine... Meaning it will snap right into each gate.
But for some reason, as soon as I've gone a couple miles or it gets hot, it seems I really have to push the shifter into the gate. It doesn't grind at all. Just feels like there's something pushing back and instead of a click going in, it just kind of "smooshes" in.
Any ideas?
Race Director
Joined: Aug 2000
Posts: 10,649
Likes: 31
From: Central Florida
Suggest you clean up the clutch fluid by concerted following of the protocol. That's step #1. It's corrupt clutch fluid that impedes proper functioning of the clutch hydraulics.
The approach for the C5 platform is to change the fluid (to DOT4) and then drive the car to mix the fluid. Then swap again and take a drive. A couple weeks of that will normally clean up even the dirtiest clutch fluid.
As step #2, suggest changing the tranny fluid, if that's not been done in the last 12K-15K miles.
Once both those steps are accomplished, let us know if the symptoms continue.
Ranger
The approach for the C5 platform is to change the fluid (to DOT4) and then drive the car to mix the fluid. Then swap again and take a drive. A couple weeks of that will normally clean up even the dirtiest clutch fluid.
As step #2, suggest changing the tranny fluid, if that's not been done in the last 12K-15K miles.
Once both those steps are accomplished, let us know if the symptoms continue.
Ranger
Last edited by Ranger; Jul 22, 2009 at 07:16 PM.
Thread Starter
Le Mans Master
Joined: Jul 2009
Posts: 9,526
Likes: 12
From: Los Angeles California
I checked my clutch fluid before I left. It's black as night. I'm taking my daily driver over to Autozone right now and picking up some brake fluid. I think the protocol is right on target.
I'll let you know how things go as soon as I'm done.
Thanks guys. I really appreciate the help.
I'll let you know how things go as soon as I'm done.
Thanks guys. I really appreciate the help.
Thread Starter
Le Mans Master
Joined: Jul 2009
Posts: 9,526
Likes: 12
From: Los Angeles California
OK. Just finished changing the clutch fluid. Fixed the problem! I had to repeat the protocol about 5 times before it stayed clear. Now it's shifting perfect.
I DO want to change the trans fluid to the Royal Purple synchromax but I don't have a way to get under the car... Any ideas?
I also want to change the gear oil too to RP Gear-Max.
I DO want to change the trans fluid to the Royal Purple synchromax but I don't have a way to get under the car... Any ideas?
I also want to change the gear oil too to RP Gear-Max.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Le Mans Master
Joined: Oct 2006
Posts: 7,484
Likes: 2
From: Dayton, OH HAWG: "this is Off Topic...it can get a bit north of care bears and strawberry shortcake in here"
St. Jude Donor '08-'09-'10-'11
You can change both trans and diff fluids on ramps. It's tough, you'll make a mess of yourself, but it's possible.
Thread Starter
Le Mans Master
Joined: Jul 2009
Posts: 9,526
Likes: 12
From: Los Angeles California
UPDATE:
The protocol sort of worked. It's definitely shifting easier now, but I'm still getting what feels like clashing in the shifts. I'm going to change the fluid ASAP and hope that takes care of the issue. If it doesn't, I may need a trans rebuild. I'm hoping that's not the case.
The protocol sort of worked. It's definitely shifting easier now, but I'm still getting what feels like clashing in the shifts. I'm going to change the fluid ASAP and hope that takes care of the issue. If it doesn't, I may need a trans rebuild. I'm hoping that's not the case.
Race Director
Joined: Aug 2000
Posts: 10,649
Likes: 31
From: Central Florida
UPDATE:
The protocol sort of worked. It's definitely shifting easier now, but I'm still getting what feels like clashing in the shifts. I'm going to change the fluid ASAP and hope that takes care of the issue. If it doesn't, I may need a trans rebuild. I'm hoping that's not the case.
The protocol sort of worked. It's definitely shifting easier now, but I'm still getting what feels like clashing in the shifts. I'm going to change the fluid ASAP and hope that takes care of the issue. If it doesn't, I may need a trans rebuild. I'm hoping that's not the case.
It may take 10-20 swaps of the reservoir with driving between them to scour the crud out of the hydraulics. Persistence is required unless your pocketbook is unfettered by a desire to avoid what may be unnecessary expense. The clutch fluid is clean and the debris gone once the fluid stays absolutely clean immediately after you drive it >10 miles and then park it and check the reservoir.
Ranger
Race Director
Joined: Aug 2000
Posts: 10,649
Likes: 31
From: Central Florida