C8 problems
Melting Slicks
Joined: Nov 2019
Posts: 2,527
Likes: 1,566
Mine had a slight miss at idle too until a couple of hundred miles or so. Drive it some more and see if it goes away. Also a burning smell after driving until a few hundred miles as well. I just hit 500 today.
Last edited by Panfish; Jan 30, 2021 at 05:47 PM.
Safety Car
Joined: Dec 1999
Posts: 4,718
Likes: 1,460
From: Virginia Beach, VA & Port Charlotte, FL
Burning Brakes
Joined: Sep 2019
Posts: 1,216
Likes: 1,182
Modified C8 of the Year 2021 Winner
I noticed that the other day with about 100 miles on it. Just a bit of vibration right after cold start I hadn't noticed before. I don't think I noticed it after it warmed up. I'll pay more attention to it.
Drifting
Joined: Mar 2020
Posts: 1,568
Likes: 1,026
From: 31 hours East of Peoria, AZ
Burning Brakes
Joined: Sep 2019
Posts: 1,216
Likes: 1,182
Modified C8 of the Year 2021 Winner
Burning Brakes
Joined: Aug 2019
Posts: 1,227
Likes: 862
From: Philadelphia Suburbs
Driver's Seat Heater
My VIN is a 2020 in the 16K's, took delivery in early December. My driver's seat heater did not work early on. The lights on the button would turn on for about 8 seconds and then turn off. They would not turn back on until a new ignition cycle. Brought it in and they are ordering a new driver's seat heater unit. I have no idea if this is something that will be in within a week or are we talking months? No big deal to me, but just curious if this is something that is at a parts warehouse anywhere.
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
Racer
Joined: Dec 2013
Posts: 366
Likes: 47
From: Walnut CA
Check engine light
Wanted to share...
I have an early VIN (343) and have about 3900 miles on the car. I took delivery in late March, so its been almost a year. Not driven hard or raced or tracked. It sits on the charger, in the garage. Drove it yesterday morning and was fine. On the return trip in the afternoon, got a CEL. Drove directly to the dealer who scanned it and said there was an exhaust fault. Plus there were 3 other programming recalls to be done.
Anyway, car seemed fine....i will keep y'all advised. The Forum community is always a good source for info. Thanks
I have an early VIN (343) and have about 3900 miles on the car. I took delivery in late March, so its been almost a year. Not driven hard or raced or tracked. It sits on the charger, in the garage. Drove it yesterday morning and was fine. On the return trip in the afternoon, got a CEL. Drove directly to the dealer who scanned it and said there was an exhaust fault. Plus there were 3 other programming recalls to be done.
Anyway, car seemed fine....i will keep y'all advised. The Forum community is always a good source for info. Thanks
Racer
Joined: May 2008
Posts: 399
Likes: 199
Hardly. I don't need a stethoscope to hear it over the radio at steady state 45 mph.
Instructor
Joined: Sep 2016
Posts: 124
Likes: 56
Hey there Imroviz... Amen to your comment! Mine's getting louder week by week... Still waiting to be able to drive another so I can say with LOUD VOICE - Fix this - it is NOT normal! I was wondering if you're still in the battle...
Over on the C8 World F'Book group this guy responded to my whine question like this:
=AZWkyz3alJZJ2szN1BVJQKIfEDdn_QiKVRBRTCT i7H0meTJIs6qrTTJtU99lDwWVSEARXrmPBakcPvY hRjmA5dhC3F5DOmzy8FCsdqPcP9sAQIGSsaODqGQ FHJ3vemo4Rero4w4vbUB_cF3cvfhV8Vby9u1nIeI nC-PAJ8ffd8WYZNCCAxIBD2MC_PAWMLd8Cco&__tn__ =R]-R]Brandon Byers
=AZWkyz3alJZJ2szN1BVJQKIfEDdn_QiKVRBRTCT i7H0meTJIs6qrTTJtU99lDwWVSEARXrmPBakcPvY hRjmA5dhC3F5DOmzy8FCsdqPcP9sAQIGSsaODqGQ FHJ3vemo4Rero4w4vbUB_cF3cvfhV8Vby9u1nIeI nC-PAJ8ffd8WYZNCCAxIBD2MC_PAWMLd8Cco&__tn__ =R]-R]Gary Geiger
it requires a new transmission. No tech at a dealer can open that puppy up and fix it.
Most likely, you will first have to open a case with GM, the engineers come out, they do a PICO test to monitor noise levels, the engineer will ride in the car with you, etc etc.
Finally, if you don't let up, they will give you a new trans.
Over on the C8 World F'Book group this guy responded to my whine question like this:
=AZWkyz3alJZJ2szN1BVJQKIfEDdn_QiKVRBRTCT i7H0meTJIs6qrTTJtU99lDwWVSEARXrmPBakcPvY hRjmA5dhC3F5DOmzy8FCsdqPcP9sAQIGSsaODqGQ FHJ3vemo4Rero4w4vbUB_cF3cvfhV8Vby9u1nIeI nC-PAJ8ffd8WYZNCCAxIBD2MC_PAWMLd8Cco&__tn__ =R]-R]Brandon Byers
=AZWkyz3alJZJ2szN1BVJQKIfEDdn_QiKVRBRTCT i7H0meTJIs6qrTTJtU99lDwWVSEARXrmPBakcPvY hRjmA5dhC3F5DOmzy8FCsdqPcP9sAQIGSsaODqGQ FHJ3vemo4Rero4w4vbUB_cF3cvfhV8Vby9u1nIeI nC-PAJ8ffd8WYZNCCAxIBD2MC_PAWMLd8Cco&__tn__ =R]-R]Gary Geiger
it requires a new transmission. No tech at a dealer can open that puppy up and fix it.
Most likely, you will first have to open a case with GM, the engineers come out, they do a PICO test to monitor noise levels, the engineer will ride in the car with you, etc etc.
Finally, if you don't let up, they will give you a new trans.
Racer
Joined: May 2008
Posts: 399
Likes: 199
Hey there Imroviz... Amen to your comment! Mine's getting louder week by week... Still waiting to be able to drive another so I can say with LOUD VOICE - Fix this - it is NOT normal! I was wondering if you're still in the battle...
Over on the C8 World F'Book group this guy responded to my whine question like this:
=AZWkyz3alJZJ2szN1BVJQKIfEDdn_QiKVRBRTCT i7H0meTJIs6qrTTJtU99lDwWVSEARXrmPBakcPvY hRjmA5dhC3F5DOmzy8FCsdqPcP9sAQIGSsaODqGQ FHJ3vemo4Rero4w4vbUB_cF3cvfhV8Vby9u1nIeI nC-PAJ8ffd8WYZNCCAxIBD2MC_PAWMLd8Cco&__tn__ =R]-R]Brandon Byers
=AZWkyz3alJZJ2szN1BVJQKIfEDdn_QiKVRBRTCT i7H0meTJIs6qrTTJtU99lDwWVSEARXrmPBakcPvY hRjmA5dhC3F5DOmzy8FCsdqPcP9sAQIGSsaODqGQ FHJ3vemo4Rero4w4vbUB_cF3cvfhV8Vby9u1nIeI nC-PAJ8ffd8WYZNCCAxIBD2MC_PAWMLd8Cco&__tn__ =R]-R]Gary Geiger
it requires a new transmission. No tech at a dealer can open that puppy up and fix it.
Most likely, you will first have to open a case with GM, the engineers come out, they do a PICO test to monitor noise levels, the engineer will ride in the car with you, etc etc.
Finally, if you don't let up, they will give you a new trans.
Over on the C8 World F'Book group this guy responded to my whine question like this:
=AZWkyz3alJZJ2szN1BVJQKIfEDdn_QiKVRBRTCT i7H0meTJIs6qrTTJtU99lDwWVSEARXrmPBakcPvY hRjmA5dhC3F5DOmzy8FCsdqPcP9sAQIGSsaODqGQ FHJ3vemo4Rero4w4vbUB_cF3cvfhV8Vby9u1nIeI nC-PAJ8ffd8WYZNCCAxIBD2MC_PAWMLd8Cco&__tn__ =R]-R]Brandon Byers
=AZWkyz3alJZJ2szN1BVJQKIfEDdn_QiKVRBRTCT i7H0meTJIs6qrTTJtU99lDwWVSEARXrmPBakcPvY hRjmA5dhC3F5DOmzy8FCsdqPcP9sAQIGSsaODqGQ FHJ3vemo4Rero4w4vbUB_cF3cvfhV8Vby9u1nIeI nC-PAJ8ffd8WYZNCCAxIBD2MC_PAWMLd8Cco&__tn__ =R]-R]Gary Geiger
it requires a new transmission. No tech at a dealer can open that puppy up and fix it.
Most likely, you will first have to open a case with GM, the engineers come out, they do a PICO test to monitor noise levels, the engineer will ride in the car with you, etc etc.
Finally, if you don't let up, they will give you a new trans.
Le Mans Master
Joined: Apr 2020
Posts: 6,379
Likes: 3,294
Can't see how that would happen - the seat belt holder would have to be unsnapped. Unless you have the GT1 seat and it comes out of the slot. There's a fix for that: https://www.rpidesigns.com/shop/item...guards-clips-/
Instructor
Joined: Sep 2016
Posts: 124
Likes: 56
"Right now, you just need to keep taking the car into the dealer (or multiple dealers) until you get enough service visits to warrant a "notice of final repair attempt" which you will certify mail into GM if they have still not resolved the problem after 3 or 4 documented repair attempts."
Le Mans Master
Joined: Apr 2020
Posts: 6,379
Likes: 3,294
The ocassional miss may be fuel related due to reduced driving in general around the country. Gas may be sitting in the station tanks at a lower level, ....longer than it used to without a turnover.
Last edited by C8J; Feb 7, 2021 at 07:45 AM.
Racer
Joined: Jan 2020
Posts: 264
Likes: 85
From: Florida
My first issue with the C8...1,600 miles.
I drove it about 60 miles yesterday & this morning the frunk will not open. I tried the key fob, inside the door, & the button in the bumper without any luck. I started it and let it run for 15 minutes and still nothing. When I push the cabin button I hear a clicking noise coming from behind the glove box. There's also a red message about the frunk being open. I tried pushing down on it but nothing as it is closed all the way.
Any ideas? I don't want this thing flying open on the way to the dealership for them to take a look.
I drove it about 60 miles yesterday & this morning the frunk will not open. I tried the key fob, inside the door, & the button in the bumper without any luck. I started it and let it run for 15 minutes and still nothing. When I push the cabin button I hear a clicking noise coming from behind the glove box. There's also a red message about the frunk being open. I tried pushing down on it but nothing as it is closed all the way.
Any ideas? I don't want this thing flying open on the way to the dealership for them to take a look.
Instructor
Joined: Feb 2017
Posts: 232
Likes: 50
From: Oakland CA
whole forum skews problem lots of talk from member just to fill some time. Get out there and drive.
Instructor
Joined: Feb 2017
Posts: 232
Likes: 50
From: Oakland CA
forums skew problems lots of talk from members just to fill some time. Get out there and drive.
Instructor
Joined: Sep 2016
Posts: 124
Likes: 56
I assure you if you had the noise in the car that's an all new design with a DCT you'd try and find out if was normal or needed fixing - And before any of you torch anyone about asking others about issues, keep in mind there's no way to go to your Dealer and jump in another too see what sounds or issues are normal. Not about being bored, I drive mine every day here in snowy Wisconsin - Just don't enjoy hearing a faulty diff that my Chevy Dealer says is fine.
Last edited by Garycoral; Feb 8, 2021 at 08:16 AM.