transmission/transaxle whining noise
Thread Starter
Drifting
Joined: Jan 2005
Posts: 1,827
Likes: 301
From: Tucson Arizona
St. Jude Donor '08
transmission/transaxle whining noise
I have a 2005 C6 (manual transmission) that has developed a loud gear whining noise in the last couple of weeks. It has 50K miles on it. The whining noise only happens during steady pedal or acceleration not deceleration or clutch depressed. It can begin at 35 mph in 3rd but doesn't start until 40+ mph or higher in 4/5/6th.
At 15K miles I had an after market 4:10 rear end installed that began to whine during decel in 5th and 6th gear immediately after install. Got no help from installer or builder - another story. This problem has been replaced with the above.
Both transmission and transaxle have received proper maintenance and are not low on fluid. Transmission and throw out bearing are original. Car is DD and not abused in any way.
Have emailed RPM Transmission in Indiana with a diagnosis request. They are NOT the original builder who is also located in Indiana. Nor are they the original installer.
Any ideas?
At 15K miles I had an after market 4:10 rear end installed that began to whine during decel in 5th and 6th gear immediately after install. Got no help from installer or builder - another story. This problem has been replaced with the above.
Both transmission and transaxle have received proper maintenance and are not low on fluid. Transmission and throw out bearing are original. Car is DD and not abused in any way.
Have emailed RPM Transmission in Indiana with a diagnosis request. They are NOT the original builder who is also located in Indiana. Nor are they the original installer.
Any ideas?
Last edited by jim2092; May 25, 2013 at 07:24 PM.
Race Director
Joined: Mar 2005
Posts: 10,399
Likes: 26
From: Austin Texas
Terminology?
Transmission or Differential. There is no transaxle in a Corvette. The transmission is a separate case with it's own fluid and the differential is another separate case with it's own fluid.
the problem is probably realated to the 4.10 gears or their installation.
Transmission or Differential. There is no transaxle in a Corvette. The transmission is a separate case with it's own fluid and the differential is another separate case with it's own fluid.
the problem is probably realated to the 4.10 gears or their installation.
Thread Starter
Drifting
Joined: Jan 2005
Posts: 1,827
Likes: 301
From: Tucson Arizona
St. Jude Donor '08
Thread Starter
Drifting
Joined: Jan 2005
Posts: 1,827
Likes: 301
From: Tucson Arizona
St. Jude Donor '08
Terminology?
Transmission or Differential. There is no transaxle in a Corvette. The transmission is a separate case with it's own fluid and the differential is another separate case with it's own fluid.
the problem is probably realated to the 4.10 gears or their installation.
Transmission or Differential. There is no transaxle in a Corvette. The transmission is a separate case with it's own fluid and the differential is another separate case with it's own fluid.
the problem is probably realated to the 4.10 gears or their installation.
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Burning Brakes
Joined: Aug 2008
Posts: 802
Likes: 6
From: Oro Valley AZ
Whining generally is the ring and pinion gears just eating each other up. I would try and get a flexible magnet in the fill hole and see if there is any metal debris in the case.
Also, check to make sure it's not a rear hub noise.
Also, check to make sure it's not a rear hub noise.
Thread Starter
Drifting
Joined: Jan 2005
Posts: 1,827
Likes: 301
From: Tucson Arizona
St. Jude Donor '08
Thread Starter
Drifting
Joined: Jan 2005
Posts: 1,827
Likes: 301
From: Tucson Arizona
St. Jude Donor '08
Whining generally is the ring and pinion gears just eating each other up. I would try and get a flexible magnet in the fill hole and see if there is any metal debris in the case.
I will do a complete draining and check for metal.
Also, check to make sure it's not a rear hub noise.
I will do a complete draining and check for metal.
Also, check to make sure it's not a rear hub noise.
Supporting Vendor
Joined: Apr 2011
Posts: 3,332
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From: Frederick Maryland
St. Jude Donor '08-'09-'10-'11-'12, '14-'15-'16-'17-'18
It is in fact your ring and poinion gears.
I doubt if you get any metalic parts from the diff since the magnet usually attracts anything floating around.
I doubt if you get any metalic parts from the diff since the magnet usually attracts anything floating around.
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Thread Starter
Drifting
Joined: Jan 2005
Posts: 1,827
Likes: 301
From: Tucson Arizona
St. Jude Donor '08
Rick,
Thanks for the input. As the owner of a transmission shop for Corvettes I wonder if you have thoughts on the following.
1. the car experienced immediate whining on decel in 5th and 6th gear after install - improper set-up or break-in?
2. will draining and re-installing fresh lubricant lengthen the usable life of the rear end and if so will it make it to Indiana from Arizona?
Just from your experience-no warranties implied - lol.
Thanks for the input. As the owner of a transmission shop for Corvettes I wonder if you have thoughts on the following.
1. the car experienced immediate whining on decel in 5th and 6th gear after install - improper set-up or break-in?
2. will draining and re-installing fresh lubricant lengthen the usable life of the rear end and if so will it make it to Indiana from Arizona?
Just from your experience-no warranties implied - lol.
Supporting Vendor
Joined: Apr 2011
Posts: 3,332
Likes: 195
From: Frederick Maryland
St. Jude Donor '08-'09-'10-'11-'12, '14-'15-'16-'17-'18
Rick,
Thanks for the input. As the owner of a transmission shop for Corvettes I wonder if you have thoughts on the following.
1. the car experienced immediate whining on decel in 5th and 6th gear after install - improper set-up or break-in?
2. will draining and re-installing fresh lubricant lengthen the usable life of the rear end and if so will it make it to Indiana from Arizona?
Just from your experience-no warranties implied - lol.
Thanks for the input. As the owner of a transmission shop for Corvettes I wonder if you have thoughts on the following.
1. the car experienced immediate whining on decel in 5th and 6th gear after install - improper set-up or break-in?
2. will draining and re-installing fresh lubricant lengthen the usable life of the rear end and if so will it make it to Indiana from Arizona?
Just from your experience-no warranties implied - lol.
2. That depends on how many miles you have on the current diff but fresh fluid is always a good idea.
Thread Starter
Drifting
Joined: Jan 2005
Posts: 1,827
Likes: 301
From: Tucson Arizona
St. Jude Donor '08
35K miles on this rear end/differential and no high performance driving?
Supporting Vendor
Joined: Apr 2011
Posts: 3,332
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From: Frederick Maryland
St. Jude Donor '08-'09-'10-'11-'12, '14-'15-'16-'17-'18
Melting Slicks
Joined: Nov 2010
Posts: 2,626
Likes: 195
From: On the east coast we drive until we die
I've been having the same issue. Check out this thread, it has some more info also offered by RK. I'll have to try the thicker fluid myself to see if that helps with noise.
http://forums.corvetteforum.com/c6-t...nsmission.html
http://forums.corvetteforum.com/c6-t...nsmission.html
Melting Slicks
Joined: Nov 2010
Posts: 2,626
Likes: 195
From: On the east coast we drive until we die
Amsoil 75w140 on it's way. I'll report back with the results.
Honestly, if it's not in danger of exploding on me anytime soon, I can live with the noise. The exhaust, music, and window-down cruising take care of the problem.
Honestly, if it's not in danger of exploding on me anytime soon, I can live with the noise. The exhaust, music, and window-down cruising take care of the problem.
Last edited by 5knives; May 29, 2013 at 05:18 PM.