NVH Issue: need some advice
Thread Starter
Burning Brakes
Joined: Jan 2006
Posts: 788
Likes: 105
From: Olathe Kansas
NVH Issue: need some advice
I am getting a noise issue in my 2000 Vert A4 118k Miles
I am original owner.. Old man miles
It started this spring at highway speeds.
It almost sounds like I have snow tires on it. It's not a vibration like
a wheel balance issue.
It's more like a bad wheel bearing noise. I Have replaced
all the wheel bearings. Tires are Hankook Evo's -- 2 years old, 3k miles.
I have done research thinking maybe torque tube couplers or bearings..
But I haven't seen anything that truly id's others symptoms with mine/
It starts about 40 mph and seems to get worse with mph.
It is NOT rpm / load dependent.. Doesn't change with putting load on left to right either.
Tires are wearing perfectly. Everything always and recently serviced correctly by me.
Ideas ?????
I am original owner.. Old man miles
It started this spring at highway speeds.
It almost sounds like I have snow tires on it. It's not a vibration like
a wheel balance issue.
It's more like a bad wheel bearing noise. I Have replaced
all the wheel bearings. Tires are Hankook Evo's -- 2 years old, 3k miles.
I have done research thinking maybe torque tube couplers or bearings..
But I haven't seen anything that truly id's others symptoms with mine/
It starts about 40 mph and seems to get worse with mph.
It is NOT rpm / load dependent.. Doesn't change with putting load on left to right either.
Tires are wearing perfectly. Everything always and recently serviced correctly by me.
Ideas ?????
Racer
Joined: Dec 2006
Posts: 499
Likes: 27
From: shapleigh maine
Thread Starter
Burning Brakes
Joined: Jan 2006
Posts: 788
Likes: 105
From: Olathe Kansas
I've Alway Service the Differential quite often..
And Have done it twice in the last year. Didn't find any metal or anything suspicious
in the fluid or on the the plugs..
I don't know if anyone has experienced this with a Torque Tube Issue ???
There is just no easy way of checking the TT as far as I know.
How would one diagnose Carrier Bearing Noise/Wear ???
And Have done it twice in the last year. Didn't find any metal or anything suspicious
in the fluid or on the the plugs..
I don't know if anyone has experienced this with a Torque Tube Issue ???
There is just no easy way of checking the TT as far as I know.
How would one diagnose Carrier Bearing Noise/Wear ???
Team Owner
Joined: Dec 1999
Posts: 174,312
Likes: 1,217
From: Here
Pilot of Beer Force 1
Tampa Regional Coordinator
CI 4-5-6-7-8 Veteran
Organizer St. Jude Fundraiser
I believe in the Beer Fairy
when my TT went it was pretty obvious with no noises beforehand...what a ride 
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Can you jack the rear and spin up the drive train?? Use a stethoscope to help pin point the noise..
Look for drivetrain part touching body parts. Feel each component.
Bill
Look for drivetrain part touching body parts. Feel each component.
Bill
Last edited by Bill Curlee; Dec 21, 2017 at 11:02 PM.
