Diff whine?

**lmcgrew79** · 05-16-2015

Some input? Viper TA 3200 Miles. Sounds like diff whine or from the transmission possibly? Its kinda hard to tell inside the car but sounds more like the diff to me. Does it in any gear around 50+ mph only with slight accelerations. Changed the tranny and diff fluid, but didnt make a difference.

**Steve M** · 05-16-2015

Sounds like diff whine to me...my Gen 4 does it, but probably not that loud. Fluid won't have an impact...it is likely a pattern issue. It might be a pain, but you could probably get it fixed under warranty.

**Rapidrezults** · 05-16-2015

The beauty of having a full warranty on a track car.

**Jack B** · 05-16-2015

Diff whine is loudest/most noticeable when you are in a high gear and between load and coast.

**lmcgrew79** · 05-16-2015

Probably is diff whine, gonna try to make an appointment monday.

**TQMonster** · 05-16-2015

I have the same whine at 1400 miles and the dealer ordered new differential just need to make appointment to have it installed

**SilveRT8** · 05-17-2015

Originally Posted by Jack B

Diff whine is loudest/most noticeable when you are in a high gear and between load and coast.

My car had this too at around 2K, Dealer changed the diff fluid and found some metal shearings.
They ordered a new diff and changed it under warranty, no questions asked, seems like they know some cars will have this.

**Viper Pit** · 05-17-2015

My 09 started like that and got louder in very short time frame. Removed the belly pan and found a pinion seal leak that was not visible on the garage floor. I think it went toast on the trip back from voi in Utah back to Texas. Got it replaced under warranty. Bearing races were toast. Look like someone took a hammer to them! I was told fluid leaked out on the trip back.

**lmcgrew79** · 05-17-2015

Ive got a track day coming up next weekend and debating on if i should take it or not, even if i can get an appointment monday not sure they could get it replaced by Saturday.

Bruce H. · 05-17-2015

Can't imagine driving it on track knowing the car has a mechanical problem and being distracted by that concern and the noise. Could also create a warranty issue. I'd sit that one out. Hopefully that can be fixed in time.

**SilveRT8** · 05-17-2015

Originally Posted by Bruce H.

Can't imagine driving it on track knowing the car has a mechanical problem and being distracted by that concern and the noise. Could also create a warranty issue. I'd sit that one out. Hopefully that can be fixed in time.

I would listen to the wise man, There will be other track days !

**Vipercompany** · 06-04-2015

4500 miles on my TA 2.0 and the differential is being replaced as well. The whine is very loud.

**lmcgrew79** · 06-04-2015

Interesting mine is being replaced next week.

**triblk6spd** · 06-04-2015

My entire differential has to be replaced under warranty. No noise but there was a slight vibration at hiway speeds. New diff fixed the issue 100%.

**Vipercompany** · 06-04-2015

Originally Posted by triblk6spd

My entire differential has to be replaced under warranty. No noise but there was a slight vibration at hiway speeds. New diff fixed the issue 100%.

Good to know, I had to go in for service 3 times, the 3rd time was the charm at a different dealer before they realized that the whine isn't normal and the diff had to be replaced.

**Bjohnson** · 07-16-2015

When they replaced the differential under warranty, did they replace the whole unit or just the guts?

**Vipercompany** · 07-16-2015

Originally Posted by Bjohnson

When they replaced the differential under warranty, did they replace the whole unit or just the guts?

Just the guts....So far two viper techs at two different dealerships could not seal it back up correctly. I've been leaking diff fluid since the day they took it apart. The dealership sent a request for a whole new diff already sealed and it was rejected. Instead the factory sent the outer case. I'm taking it in again tomorrow to get the outer case changed. So far I've been to the dealership 4 times regarding this diff problem, tomorrow will be 5. Also now the car shakes more than usual. Especially the stick shift knob at a complete stop.

**lmcgrew79** · 07-16-2015

Replaced the whole assembly in mine, came ready to go.

**SilveRT8** · 07-16-2015

Originally Posted by lmcgrew79

Replaced the whole assembly in mine, came ready to go.

Same here

**triblk6spd** · 07-17-2015

Originally Posted by lmcgrew79

Replaced the whole assembly in mine, came ready to go.

Mine too...

**dethred** · 07-27-2015

I'm at 800 miles and in the past 200 miles I noticed at around 45mph on throttle input it becomes noticeably loud. Letting off results in no noise, its only audible at 45+, and from there it's speed dependent. :-(

**donk_316** · 07-27-2015

Please fill in your sigs so we know your year and model.

**Jack B** · 07-27-2015

Some insights

1. One of the few parts that needs a proper break-in is the diff. If you immeadely accelerate after pick up, you almost guarantee a diff issue.

2. On all the Gens, it is hard to seal the diff. That is a Dana issue.

3. The viscous motor and Trans mounts magnify the shifter movement.

Originally Posted by Vipercompany

Just the guts....So far two viper techs at two different dealerships could not seal it back up correctly. I've been leaking diff fluid since the day they took it apart. The dealership sent a request for a whole new diff already sealed and it was rejected. Instead the factory sent the outer case. I'm taking it in again tomorrow to get the outer case changed. So far I've been to the dealership 4 times regarding this diff problem, tomorrow will be 5. Also now the car shakes more than usual. Especially the stick shift knob at a complete stop.