Rear Diff Groan 2018 - Page 4

bturner2 · 10-29-2018, 06:22 AM

Mine's back in for round two. Had mine flushed in April of 2016. It quit groaning until it got cold again. This time around it was nowhere near as bad but it has gotten louder recently as it's gotten colder. Took it back in this week and was told that I was supposed to change the rear end fluid and brake fluid every 36K as part of normal maintenance. They then asked me if I wanted to pay for it to be done. I told them to fix the groan first then I would consider doing the maintenance items.

This is pretty crazy, I mean how stupid do they think people are? How are they going to look in the diff without changing the fluid?

I did check the maintainance schedule and the brake fluid is 3 year / 45K as well as the trans and rear end so there was some truth there but at the rate I'm going with the trans/torque converter being flushed for shudder and the rear end being changed for the second time for groan I should be good for another 45K. So the downside is they've fixed neither of these problems so far but the upside is that it looks like all I'll need to do this spring is flush the brake fluid to be up on the maintenance.....

nelsont · 10-29-2018, 10:04 AM

Quote:

Originally Posted by nelsont

was to take car in tonight for the flush. got call that the correct oil for Diff. is on backorder! Really.
Hopefully it doesn't snow before they get the oil in.

Tim

Update- oil is now in taking in Thursday for the flush and end of year oil change.
Will take home and put into hibernation as snow is predicted for the weekend here in WI.

Tim

KingLT1 · 10-29-2018, 11:05 AM

I don't believe a fluid flush will fix the diff noise, just like the fluid flush in the trans don't fix the converter shudder. When cold(below 50) these diffs are just gonna make some noise until the fluid warms up.

Camaro_QC · 10-29-2018, 01:22 PM

In my case it did fix it. Unless they did something else, I don't hear the noise anymore.

bturner2 · 10-29-2018, 02:38 PM

Well don't count your chickens just yet. Had mine done at about 5K and it cam back at 2 years later at about 20K.

FIFTY017 · 10-29-2018, 08:27 PM

I called my dealership as my FIFTY is in for an electrical issue. I asked them about the service notice for that groan noise. they are gonna add it to the service work while its there. good looking out for this thread!!

10-29-2018, 11:05 AM	#45
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 6,800	I don't believe a fluid flush will fix the diff noise, just like the fluid flush in the trans don't fix the converter shudder. When cold(below 50) these diffs are just gonna make some noise until the fluid warms up. __________________ 2016 NFG 1SS A8 Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA

10-29-2018, 01:22 PM	#46
Camaro_QC Drives: 08 Tiburon GS, 2018 Camaro 2.0T Join Date: Sep 2017 Location: Québec Posts: 1,660	In my case it did fix it. Unless they did something else, I don't hear the noise anymore. __________________ 2018 Camaro LS \| 6 spd \| 2.0L turbo \| Nightfall Grey \| RS package \| Technology Package. --------------------- Order WDGHKX 1100 - 5/08/2018 \| 3800 - 6/18/2018 2000 - 5/09/2018 \| 4200 - 6/21/2018 3000 - 5/28/2018 \| 5000 - 6/27/2018 6000 - 6/29/2018

10-29-2018, 06:22 AM	#43
bturner2 Drives: 2SS, Hyper Blue, Sunroof, NPP, MRC Join Date: Jul 2016 Location: Michigan Posts: 205	Mine's back in for round two. Had mine flushed in April of 2016. It quit groaning until it got cold again. This time around it was nowhere near as bad but it has gotten louder recently as it's gotten colder. Took it back in this week and was told that I was supposed to change the rear end fluid and brake fluid every 36K as part of normal maintenance. They then asked me if I wanted to pay for it to be done. I told them to fix the groan first then I would consider doing the maintenance items. This is pretty crazy, I mean how stupid do they think people are? How are they going to look in the diff without changing the fluid? I did check the maintainance schedule and the brake fluid is 3 year / 45K as well as the trans and rear end so there was some truth there but at the rate I'm going with the trans/torque converter being flushed for shudder and the rear end being changed for the second time for groan I should be good for another 45K. So the downside is they've fixed neither of these problems so far but the upside is that it looks like all I'll need to do this spring is flush the brake fluid to be up on the maintenance.....

10-29-2018, 02:38 PM	#47
bturner2 Drives: 2SS, Hyper Blue, Sunroof, NPP, MRC Join Date: Jul 2016 Location: Michigan Posts: 205	Well don't count your chickens just yet. Had mine done at about 5K and it cam back at 2 years later at about 20K.

10-29-2018, 08:27 PM	#48
FIFTY017 Drives: 2018 Silverado Z71 TxEdition Join Date: Dec 2017 Location: Tx Posts: 48	I called my dealership as my FIFTY is in for an electrical issue. I asked them about the service notice for that groan noise. they are gonna add it to the service work while its there. good looking out for this thread!!

User Name		Remember Me?
Password