Shudder location
Le Mans Master
Joined: Feb 2010
Posts: 7,798
Likes: 314
From: Santa Fe Tx
Supporting Vendor
Joined: Aug 2007
Posts: 1,452
Likes: 86
From: CT
Yeah, There are a lot of problems with those 8 speeds.. there's even a class-action lawsuit against GM for all the 8 speed tranny problems... There are several GM technical service bulletins out about tranny issues, for dealers to try certain things to fix it.. There's some about the dealer re-programming the TCM/tranny control module with some new GM TCM programming updates regarding that shudder... There are also some programming updates for other things like tranny slipping, clunking, etc.. Another one is for dealers to drain all the tranny fluid out and replace with new, different tranny fluid...
__________________
06MonteSS / DiabLew Tune
2014 Camaro 2SS/RS LS3, short-throw shifter, NPP perf. exhaust, BMR strut-tower brace, Cold Air Inductions cold air intake, catch-can, ported/polished TB, Custom DiabLew Tune
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com
06MonteSS / DiabLew Tune
2014 Camaro 2SS/RS LS3, short-throw shifter, NPP perf. exhaust, BMR strut-tower brace, Cold Air Inductions cold air intake, catch-can, ported/polished TB, Custom DiabLew Tune
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com
Burning Brakes
Joined: Jun 2002
Posts: 769
Likes: 130
From: Vacaville Ca
Took my then new 2017 Z06 to the dealer for the shudder. On the test drive as soon as it was placed in manual mode the shudder went away only to return as soon as it was placed back in drive. They did the triple flush only for it to return in 2 years later.
Took it back to the dealer which was a mistake because sitting on the show room floor was a brand new 2019 ZR1.
Guess which C7 I drove home ? Yep the ZR1
Took it back to the dealer which was a mistake because sitting on the show room floor was a brand new 2019 ZR1.
Guess which C7 I drove home ? Yep the ZR1
Melting Slicks
Joined: Feb 2018
Posts: 2,152
Likes: 1,031
From: North Texas
Race Director
Joined: Jul 2018
Posts: 10,547
Likes: 8,322
From: San Antonio, TX/Mahopac, NY
2024 Corvette of the Year Finalist - Modified
2024 Corvette of the Year Finalist - Unmodified
2023 C7 of the Year Winner - Modified
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