Corvette c6 Vibration issue
Thread Starter
8th Gear
Joined: Nov 2021
Posts: 8
Likes: 0
From: Dubai
Corvette c6 Vibration issue
Hello folks,
I have an issue and it’s not clear where is this issue coming from.
when RPM goes above 2000 a vibration starts and the more rpm the faster it becomes, no sounds just vibration.
I thought it was the drive shaft so I changed driveshaft bearings and rubbers but still got same issue.
I’m not sure it’s from the engine because if it’s from the engine it would show knocks I guess..
Whether I engage or disengage the clutch it’s still vibrates as if it’s going to blow up!
Corvette C6 manual transmission TR6060
I have an issue and it’s not clear where is this issue coming from.
when RPM goes above 2000 a vibration starts and the more rpm the faster it becomes, no sounds just vibration.
I thought it was the drive shaft so I changed driveshaft bearings and rubbers but still got same issue.
I’m not sure it’s from the engine because if it’s from the engine it would show knocks I guess..
Whether I engage or disengage the clutch it’s still vibrates as if it’s going to blow up!
Corvette C6 manual transmission TR6060
Thread Starter
8th Gear
Joined: Nov 2021
Posts: 8
Likes: 0
From: Dubai
Yes it vibrates when clutch in and out. I tried to press the clutch more than once in case in if it’s not release 100% but still the same..
Le Mans Master
Joined: May 2015
Posts: 5,187
Likes: 1,216
From: Las Vegas Nevada
So, it is not speed-related, at all? Only when above 2k rpm, no matter what speed? And, it happens in neutral, clutch in or out...hmm. Sounds like it has to be engine, or an accessory on the engine. I would not be driving it at all until I found out where the noise is from. If it is an "engine vibration" you may damage it more by driving.
Anybody have thoughts about motor mount?
Anybody have thoughts about motor mount?
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Le Mans Master
Joined: Dec 2004
Posts: 5,492
Likes: 808
From: West coast CA
Press the snowflake button to disengage the A/C compressor and see if it helps. It's an easy test to try.
Look to see if the harmonic balancer is wobbling.
Remove the serpentine belt to eliminate all the accessories. You'll get a charging system error and no coolant won't be circulating so don't run the engine long.
Thread Starter
8th Gear
Joined: Nov 2021
Posts: 8
Likes: 0
From: Dubai
So, it is not speed-related, at all? Only when above 2k rpm, no matter what speed? And, it happens in neutral, clutch in or out...hmm. Sounds like it has to be engine, or an accessory on the engine. I would not be driving it at all until I found out where the noise is from. If it is an "engine vibration" you may damage it more by driving.
Anybody have thoughts about motor mount?
Anybody have thoughts about motor mount?
Motor mount is good
Thread Starter
8th Gear
Joined: Nov 2021
Posts: 8
Likes: 0
From: Dubai
That eliminates the driveshaft and gearbox from suspicion. With the car stopped and the clutch disengaged, they're not moving.
Press the snowflake button to disengage the A/C compressor and see if it helps. It's an easy test to try.
Look to see if the harmonic balancer is wobbling.
Remove the serpentine belt to eliminate all the accessories. You'll get a charging system error and no coolant won't be circulating so don't run the engine long.
Press the snowflake button to disengage the A/C compressor and see if it helps. It's an easy test to try.
Look to see if the harmonic balancer is wobbling.
Remove the serpentine belt to eliminate all the accessories. You'll get a charging system error and no coolant won't be circulating so don't run the engine long.
Correct me if I’m wrong.
Melting Slicks
Joined: Sep 2021
Posts: 2,555
Likes: 1,213
If you only have one serpentine belt running everything and one of those things is vibrating the belt sends the vibrations onto everything.
Thread Starter
8th Gear
Joined: Nov 2021
Posts: 8
Likes: 0
From: Dubai
Corvette Enthusiast
Joined: Oct 2003
Posts: 524
Likes: 140
From: La Quinta CA
I agree with samk6, I think you should check your harmonic balancer. In time the rubber in the balancers can start to come apart and they can let the weight slip. This can cause a definite vibration that follows the engine RPM's. I would give it a good inspection and then I would look into other components.
Safety Car
Joined: May 2016
Posts: 4,662
Likes: 1,846
From: Erlanger, Kentucky
Definitely something wrong with the PS pump and/or pulley. That could be the source of the vibration and it would get worse as RPM's increase.
Can't quite see the HB if it wobbling.
Can't quite see the HB if it wobbling.
