C7 "Shudder"
Thread Starter
Intermediate
Joined: Jun 2017
Posts: 28
Likes: 13
From: Lake Charles Louisiana
C7 "Shudder"
My 2016 C7 shudders when driving on the interstate. We feel the annoying vibration in our seats and it comes and goes every 5 seconds or so. I have less than 6K on my car, the tires are balanced and the road is smooth. Any ideas?
Melting Slicks
Joined: Dec 2015
Posts: 2,209
Likes: 933
From: Just outside a swamp in Florida
Depending on production date, you may just get a new tour converter which involves reassembling the car from scratch.
No, not really, just the back half of it.
Or if it was built after December 15 they'll do a triple flush on the transmission and tell you to go drive around for 500 miles, and see if that works.
At least that is what the dealer told me.
So far it has worked for me. I'm at 700 miles After the triple flush.
No, not really, just the back half of it.
Or if it was built after December 15 they'll do a triple flush on the transmission and tell you to go drive around for 500 miles, and see if that works.
At least that is what the dealer told me.
So far it has worked for me. I'm at 700 miles After the triple flush.
Le Mans Master
Joined: Sep 2003
Posts: 8,847
Likes: 795
From: Longview Texas
Depending on production date, you may just get a new tour converter which involves reassembling the car from scratch.
No, not really, just the back half of it.
Or if it was built after December 15 they'll do a triple flush on the transmission and tell you to go drive around for 500 miles, and see if that works.
At least that is what the dealer told me.
So far it has worked for me. I'm at 700 miles After the triple flush.
No, not really, just the back half of it.
Or if it was built after December 15 they'll do a triple flush on the transmission and tell you to go drive around for 500 miles, and see if that works.
At least that is what the dealer told me.
So far it has worked for me. I'm at 700 miles After the triple flush.
Le Mans Master
Joined: May 2000
Posts: 8,729
Likes: 1,508
From: Redmond WA
Hmmm... the other day I noticed a bit of a shudder in my convertible that I -thought- was cowl shake at first. It felt like a vibration that would travel front to back, almost.
Does that sound like the typical converter issue? Does it get progressively worse? I could barely detect it so wasn't worried about it, unless it gets worse over time.
Does that sound like the typical converter issue? Does it get progressively worse? I could barely detect it so wasn't worried about it, unless it gets worse over time.
Thread Starter
Intermediate
Joined: Jun 2017
Posts: 28
Likes: 13
From: Lake Charles Louisiana
Hmmm... the other day I noticed a bit of a shudder in my convertible that I -thought- was cowl shake at first. It felt like a vibration that would travel front to back, almost.
Does that sound like the typical converter issue? Does it get progressively worse? I could barely detect it so wasn't worried about it, unless it gets worse over time.
Does that sound like the typical converter issue? Does it get progressively worse? I could barely detect it so wasn't worried about it, unless it gets worse over time.
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Safety Car
Joined: Mar 2009
Posts: 4,101
Likes: 719
From: Northeast MA & Mad Beach FL
Instructor
Joined: Jun 2016
Posts: 164
Likes: 96
From: Leesburg FL
Get it to your dealer as soon as you can.....it will not self correct or get any better....mine started at 9000 miles and new TC was installed and it has run like new ever since....I waited 2 months and that was just dumb since I almost hated driving it....get it fixed you will be amazed at the difference
Good Luck
Good Luck
Pro
Joined: May 2017
Posts: 525
Likes: 555
We have a thread about this problem, OP. Its a sticky at the top of this forum. Might want to post up in there:
https://www.corvetteforum.com/forums...-tracking.html
https://www.corvetteforum.com/forums...-tracking.html
Pro
Joined: May 2017
Posts: 525
Likes: 555
My TC was just replaced, but I still have the firewall rattling issue. Seems like its probably the belt tensioner issue which is documented, but they still can't figure it out.
Thread Starter
Intermediate
Joined: Jun 2017
Posts: 28
Likes: 13
From: Lake Charles Louisiana
Depending on production date, you may just get a new tour converter which involves reassembling the car from scratch.
No, not really, just the back half of it.
Or if it was built after December 15 they'll do a triple flush on the transmission and tell you to go drive around for 500 miles, and see if that works.
At least that is what the dealer told me.
So far it has worked for me. I'm at 700 miles After the triple flush.
No, not really, just the back half of it.
Or if it was built after December 15 they'll do a triple flush on the transmission and tell you to go drive around for 500 miles, and see if that works.
At least that is what the dealer told me.
So far it has worked for me. I'm at 700 miles After the triple flush.
Safety Car
Joined: Jan 2014
Posts: 4,496
Likes: 856
From: Walhalla South Carolina
I am thinking the triple flush is just a band aid, I hope I am wrong. I drive in M most of the time to keep out of the AFM mode. Sad GM can't figure this out my now or maybe they have and it is to costly to recall all the C7's. Good luck with your fix
Safety Car
Joined: Sep 2001
Posts: 4,495
Likes: 1,263
From: Jacksonville FL
Hmmm... the other day I noticed a bit of a shudder in my convertible that I -thought- was cowl shake at first. It felt like a vibration that would travel front to back, almost.
Does that sound like the typical converter issue? Does it get progressively worse? I could barely detect it so wasn't worried about it, unless it gets worse over time.
Does that sound like the typical converter issue? Does it get progressively worse? I could barely detect it so wasn't worried about it, unless it gets worse over time.