C8 problems
Team Owner
Joined: May 2005
Posts: 37,583
Likes: 5
Well, I took my car in for a slow leak on a tire. It had a nail in it and it will need replaced. They did not have one in stock and the temporary patch wouldn't work. I had to leave the car there until the tire comes in. This is the second tire that had to be replaced. The first tire picked up a ratchet extension and left a good size hole in the tire. The car has just a little over 2000 miles on it. I never had this many tire problems in such a short time.
At least they gave me a ride home. I live about 20 miles from the dealer..,
At least they gave me a ride home. I live about 20 miles from the dealer..,
As luck would have it, I was literally 1/2 mile from my go-to tire store, so I pogo-ed my way there. Yes the extension went in radially, came to rest on the rim, and almost an inch protruded, so kathump-kahump-kathump.
It was no problem getting the tire repaired, which is why, over the years, this had become my go-to shop. The "secret" is, they took the tire off the rim, plugged the hole, trimmed the plug on the inside, and put a nice big patch on the inside. It was this shop's policy always to patch punctures from the inside after plugging them. That is what a real tire repair looks like.
Burning Brakes
Joined: Sep 2009
Posts: 755
Likes: 3
From: Houston Texas
So I thought I was the only one ever to have a rachet extension puncture a tire! Obviously it made a good sized hole, although it was 1/4" drive.
As luck would have it, I was literally 1/2 mile from my go-to tire store, so I pogo-ed my way there. Yes the extension went in radially, came to rest on the rim, and almost an inch protruded, so kathump-kahump-kathump.
It was no problem getting the tire repaired, which is why, over the years, this had become my go-to shop. The "secret" is, they took the tire off the rim, plugged the hole, trimmed the plug on the inside, and put a nice big patch on the inside. It was this shop's policy always to patch punctures from the inside after plugging them. That is what a real tire repair looks like.
As luck would have it, I was literally 1/2 mile from my go-to tire store, so I pogo-ed my way there. Yes the extension went in radially, came to rest on the rim, and almost an inch protruded, so kathump-kahump-kathump.
It was no problem getting the tire repaired, which is why, over the years, this had become my go-to shop. The "secret" is, they took the tire off the rim, plugged the hole, trimmed the plug on the inside, and put a nice big patch on the inside. It was this shop's policy always to patch punctures from the inside after plugging them. That is what a real tire repair looks like.
Advanced
Joined: Mar 2025
Posts: 71
Likes: 87
Got in some heavy stop and go traffic yesterday and the car just didn't drive/shift very smoothly, maybe because the car always tries to shift through 1-3 so quickly.
Is this normal or may I possibly be looking at the start of transmission problems? I have just under 1000 miles on the car. Thanks.
Is this normal or may I possibly be looking at the start of transmission problems? I have just under 1000 miles on the car. Thanks.
Pro
Joined: Mar 2017
Posts: 722
Likes: 566
From: Northern Utah
Got in some heavy stop and go traffic yesterday and the car just didn't drive/shift very smoothly, maybe because the car always tries to shift through 1-3 so quickly.
Is this normal or may I possibly be looking at the start of transmission problems? I have just under 1000 miles on the car. Thanks.
Is this normal or may I possibly be looking at the start of transmission problems? I have just under 1000 miles on the car. Thanks.
Advanced
Joined: Mar 2025
Posts: 71
Likes: 87
Pro
Joined: Mar 2017
Posts: 722
Likes: 566
From: Northern Utah
What mode were you in? Did you try switching to manual? I've heard a few say that it won't shift into odd or even gears. Either 1,3,5 or 2,4,6. Most have said it throws a CEL and goes into limp mode. Keep in mind, the vast majority of cars have no issues.
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
Instructor
Joined: May 2024
Posts: 170
Likes: 84
From: Camarillo, CA
Got in some heavy stop and go traffic yesterday and the car just didn't drive/shift very smoothly, maybe because the car always tries to shift through 1-3 so quickly.
Is this normal or may I possibly be looking at the start of transmission problems? I have just under 1000 miles on the car. Thanks.
Is this normal or may I possibly be looking at the start of transmission problems? I have just under 1000 miles on the car. Thanks.
Pro
Joined: May 2025
Posts: 514
Likes: 263
From: Huntsville
For me, the stop-and-go traffic is Ok but I did experience some transmission roughness and when I park on an incline and then try to go slowly (creep up) up the hill. More precise, my driveway is at a mild incline and I’ve learned to let my wife out at the bottom of the driveway and then somewhat accelerate and drive into the garage much faster than I should. In all fairness however, I’ve only experienced a rough transmission shift a couple of times on the incline and I’ve had the car for one year and 5 months with about 19k miles presently. Somehow, I don’t think Tremec did a good job to account for going slow up inclines (I would hope that’s a software setting where the the transmission should keep the low gear a lot longer for inclines instead of changing to a higher gear right away).
Instructor
Joined: May 2024
Posts: 170
Likes: 84
From: Camarillo, CA
I did some ChatGPT on this and apparently a hill-assist feature is mentioned in the 2023 model but not 2024 (which is my model year). The recommendation was to switch to manual to keep the car in the 1’st or 2’nd gear (depending on the incline) without allowing it to shift.
Race Director
Joined: Dec 2000
Posts: 19,304
Likes: 85
From: San Diego CA
So I thought I was the only one ever to have a rachet extension puncture a tire! Obviously it made a good sized hole, although it was 1/4" drive.
As luck would have it, I was literally 1/2 mile from my go-to tire store, so I pogo-ed my way there. Yes the extension went in radially, came to rest on the rim, and almost an inch protruded, so kathump-kahump-kathump.
It was no problem getting the tire repaired, which is why, over the years, this had become my go-to shop. The "secret" is, they took the tire off the rim, plugged the hole, trimmed the plug on the inside, and put a nice big patch on the inside. It was this shop's policy always to patch punctures from the inside after plugging them. That is what a real tire repair looks like.
As luck would have it, I was literally 1/2 mile from my go-to tire store, so I pogo-ed my way there. Yes the extension went in radially, came to rest on the rim, and almost an inch protruded, so kathump-kahump-kathump.
It was no problem getting the tire repaired, which is why, over the years, this had become my go-to shop. The "secret" is, they took the tire off the rim, plugged the hole, trimmed the plug on the inside, and put a nice big patch on the inside. It was this shop's policy always to patch punctures from the inside after plugging them. That is what a real tire repair looks like.
Race Director
Joined: Dec 2000
Posts: 19,304
Likes: 85
From: San Diego CA
Looking a step down in cost, there have been only 24,000 GR Supras sold. Here in Southern CA, these are very rare. C8s, it seems are everywhere.
8th Gear
Joined: Dec 2022
Posts: 8
Likes: 1
Another update - I must be snake bit with Corvette. This car has been in the shop for over a week for the third time. The second was to replace the right rear taillight assembly that had seal failure allowing moisture into the light assembly. This caused several module failures and required battery replacement. Warranty issue #3 currently being repaired is module failures that control the HTC, both seats and frunk. The service dealer has also ordered a replacement wiring harness while the car sets in the shop with the rear bumper removed. This $100k car is not yet one year old and is nearing 40 days out of service!!!! My 2023 was a Georgia Lemon Law car and the 2024 will be as well. Make no mistake, I love this car....... sick of issues though! The replacement process is no fun but I'm going to try one more time with a 2026 replacement.
Pro
Joined: Jul 2000
Posts: 624
Likes: 3
From: West Point Utah
These failures, and many others, are due to GM's low standards in material choice, build quality and lack of customer satisfaction.
Let Lexus take over building the Corvette. Let a company with amazing customer service, excellent build quality, and serious design and engineering strategies take a crack at it.
GM has failed its customers that buy Cadillacs, Tahoe's, Camaro's and every other car they peddle.
The C8 is substantially over-priced. GM is recalling 26,000 C8's for fires caused by fueling issues.
Fueling issues?
A car priced at least $150,000 being recalled for fueling issues?
Anyone care to remember the LS7 fiasco?
GM has failed at building cars and providing a decent automobile to their customers.
I bought my first Porsche, a 911 turbo S.
Not quite the road warrior most Corvettes have been over the years, but a real warranty, customer service and customer satisfaction.
Plus, such a different feel this Porsche has over the Corvette; quality.
Let Lexus take over building the Corvette. Let a company with amazing customer service, excellent build quality, and serious design and engineering strategies take a crack at it.
GM has failed its customers that buy Cadillacs, Tahoe's, Camaro's and every other car they peddle.
The C8 is substantially over-priced. GM is recalling 26,000 C8's for fires caused by fueling issues.
Fueling issues?
A car priced at least $150,000 being recalled for fueling issues?
Anyone care to remember the LS7 fiasco?
GM has failed at building cars and providing a decent automobile to their customers.
I bought my first Porsche, a 911 turbo S.
Not quite the road warrior most Corvettes have been over the years, but a real warranty, customer service and customer satisfaction.
Plus, such a different feel this Porsche has over the Corvette; quality.
Drifting
Joined: Apr 2021
Posts: 1,560
Likes: 1,074
These failures, and many others, are due to GM's low standards in material choice, build quality and lack of customer satisfaction.
Let Lexus take over building the Corvette. Let a company with amazing customer service, excellent build quality, and serious design and engineering strategies take a crack at it.
GM has failed its customers that buy Cadillacs, Tahoe's, Camaro's and every other car they peddle.
The C8 is substantially over-priced. GM is recalling 26,000 C8's for fires caused by fueling issues.
Fueling issues?
A car priced at least $150,000 being recalled for fueling issues?
Anyone care to remember the LS7 fiasco?
GM has failed at building cars and providing a decent automobile to their customers.
I bought my first Porsche, a 911 turbo S.
Not quite the road warrior most Corvettes have been over the years, but a real warranty, customer service and customer satisfaction.
Plus, such a different feel this Porsche has over the Corvette; quality.
Let Lexus take over building the Corvette. Let a company with amazing customer service, excellent build quality, and serious design and engineering strategies take a crack at it.
GM has failed its customers that buy Cadillacs, Tahoe's, Camaro's and every other car they peddle.
The C8 is substantially over-priced. GM is recalling 26,000 C8's for fires caused by fueling issues.
Fueling issues?
A car priced at least $150,000 being recalled for fueling issues?
Anyone care to remember the LS7 fiasco?
GM has failed at building cars and providing a decent automobile to their customers.
I bought my first Porsche, a 911 turbo S.
Not quite the road warrior most Corvettes have been over the years, but a real warranty, customer service and customer satisfaction.
Plus, such a different feel this Porsche has over the Corvette; quality.
Burning Brakes
Joined: Sep 2024
Posts: 804
Likes: 747
Don't delude yourself.
And even Toyota has bad V8s prone to failure in their most recent vehicles.
Moderator
Joined: Dec 2002
Posts: 40,888
Likes: 4,342
From: Lakewood Ranch, FL