Torque Tube Issue
Instructor
Joined: Sep 2013
Posts: 152
Likes: 0
My started to make a rattling noise. .. almost unbearable. .. took it to the dealership and they told me that a need a new torque tube.... All said... The car has been in the shop for one week..... It should be done by Thursday....gm sent one from the assembly line. .....
Got my in October early vin #
Z51 npp upgrade 3lt
Got my in October early vin #
Z51 npp upgrade 3lt
Last edited by darkhorsevette; Apr 2, 2014 at 10:39 PM.
Melting Slicks
Joined: May 2001
Posts: 2,596
Likes: 120
From: East Tennessee
If he didnt say anything he would have been asked 1000 questions, best to get all the info out there.
Melting Slicks
Joined: Jun 2004
Posts: 2,130
Likes: 54
From: Granbury, Pecan Plantation TX
Looked at all the relpys above.
Here is what happened with my VIN#0170, noise started and was not from the engine and was under the car. Tech looked at it and stated it was the drive shaft bearings. Dealer contacted GM and they stated replace the whole assembly (Torque tube/drive shaft), new unit sent in one day, local dealer installed it the day it came in and GM requested the old unit be sent back. I can see if too many units are required they might have a back order. I do know of two others that had the same situation with VINs below 1500. GM will take care of it.
All is well now and have put 1K miles on it.
Here is what happened with my VIN#0170, noise started and was not from the engine and was under the car. Tech looked at it and stated it was the drive shaft bearings. Dealer contacted GM and they stated replace the whole assembly (Torque tube/drive shaft), new unit sent in one day, local dealer installed it the day it came in and GM requested the old unit be sent back. I can see if too many units are required they might have a back order. I do know of two others that had the same situation with VINs below 1500. GM will take care of it.
All is well now and have put 1K miles on it.
The vehicle came to a stop light and stopped, tried to restart and almost sounded like a very low battery would hardly crank. Had it towed to the dealer, a couple hours later it started. Had a couple more times when restarting where it started but labored trying to start. Drove it for about 45 minutes and was going to take it to the dealer to have them experience the hard starting, got to the dealers lot shut it down and it would not start, had a service writer witness the problem. It is now at the dealership till they figure it out.
I do leave it on a trickle charger between drives, the problem seems to be heat related, being it happens after driving for a while, then after sitting for a couple hours it will start with no problems. The battery was tested and OK
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Melting Slicks
Joined: Jun 2004
Posts: 2,130
Likes: 54
From: Granbury, Pecan Plantation TX
Who knows, but will not know much for a couple days their Tech is in training today and will look at it Wed. I know I will not take the car back till something is found being I can recreate the problem after driving it for a half hour or more. Being it's a low VIN 0170 Z51 A6 and spent time at Roush before delivery. It's a great car when running, but with this problem it will stay at the dealership.
Melting Slicks
Joined: May 2007
Posts: 3,269
Likes: 25
From: Simi Valley Ca
Melting Slicks
Joined: Jun 2004
Posts: 2,130
Likes: 54
From: Granbury, Pecan Plantation TX
Safety Car
Joined: Aug 2012
Posts: 3,960
Likes: 1,106
Racer
Joined: Dec 2007
Posts: 496
Likes: 0
From: FL
St. Jude Donor '09, '14
Melting Slicks
Joined: Nov 2005
Posts: 2,074
Likes: 309
I SAID it wouldn't help this situation, but I was just pointing out the obvious. I'm just trying to steer some out of the box thinkers into considering a mid-engine design for the C8, but there don't seem to be too many of those here.
Melting Slicks
Joined: Nov 2005
Posts: 2,074
Likes: 309
You would also eliminate about 6-7 feet of exhaust tubing.
Just something I hope people in influential positions start reconsidering. I just threw that out there because I enjoy getting flamed.
7th Gear
Joined: Jul 2014
Posts: 7
Likes: 0
Well I have a C7 with vin# ending in 2347 purchased in Feb 2014 and I have the same exact sound coming from the mid-underneath section of my car. I guess GM is well aware of the issue by now but is still building Stingrays with the same faulty parts and/or design. I will take the car to the dealer next week and fully expect to have the car torn apart... and with <7k miles on it too!
C7 Rattle 1
C7 Rattle 2
C7 Rattle 1
C7 Rattle 2