ZL1 Rear end noise - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

CAM....ZL1 · 06-05-2013, 08:06 AM

Quote:

Originally Posted by Al C.

Just change the fluid, it will go away! takes 20 mins to do. you have to get the diff fluid with ls additive already in it.

My fluid was changed by the dealership, and when i turn left or right
at about 5mph i hear a whine or humm.

DangerZL1 · 06-05-2013, 10:43 AM

Quote:

Originally Posted by Th3Beast

Correct me if I'm wrong.

Ok

From Chevy's site:

The differential cooler is a truly unique design. This innovative system pumps overcooled transmission fluid to a heat exchanger inside the housing, removing excess heat from the differential fluid

Sven59 · 06-05-2013, 10:53 AM

I had the same issue, back to the dealer twice, first time the backlash was off, replace ring and pinion, noise went away but came back. Next time they flushed the rearend very good. They think some of the left over lashing compund was causing the whine. It has been quiet ever since and that was about 10,000 miles ago.

Th3Beast · 06-05-2013, 03:20 PM

Quote:

Originally Posted by DangerZL1

Ok

From Chevy's site:

The differential cooler is a truly unique design. This innovative system pumps overcooled transmission fluid to a heat exchanger inside the housing, removing excess heat from the differential fluid

Wait a minute... I'm a little confused on that. So the differential fluid is not getting pumped to the front of the car?

ZL1Dave · 06-05-2013, 04:09 PM

Quote:

Originally Posted by Th3Beast

Wait a minute... I'm a little confused on that. So the differential fluid is not getting pumped to the front of the car?

Correct...its trans fluid that goes back to the rear diff and picks up some heat off the center section and housing

DangerZL1 · 06-05-2013, 04:11 PM

No. ATF is the meduim used for cooling. Otherwise the system would take more than around 2 qts of fluid to do a rear differential fluid service. I also wonder how well gear oil would circulate, especially compared to a thinner trans fluid.

DRTH VDR · 06-14-2013, 10:05 PM

http://www.camaro5.com/forums/showpo...3&postcount=45

BigguyBri · 07-09-2014, 12:08 PM

My 2013 ZL1 is in the shop now. They drained and flushed the differential 3 times but the noise is still there. I was told they're contacting Detroit to see what the next step is. They've had it for 3 days now. I really miss my ride.

DRTH VDR · 07-09-2014, 05:18 PM

Quote:

Originally Posted by BigguyBri

My 2013 ZL1 is in the shop now. They drained and flushed the differential 3 times but the noise is still there. I was told they're contacting Detroit to see what the next step is. They've had it for 3 days now. I really miss my ride.

Make sure that your ZL1 was driven for 20 miles between each differential fluid change. My dealer doesn't take my ride off the lot unless I'm aboard, so I put the 60 miles on it and the problem cleared.

Cheers -

Major Boyd

Camero5 · 07-21-2014, 02:26 AM

Quote:

Originally Posted by Jamesdman24

I have a 2012 ZL1. The rear end makes this weird humming noise, similar to the sound when your power steering is low, coming from the rear when the wheels are cranked in either reverse or forward. Any help would be great!!!

Does it happen while at a cruising speed as well?

My 2013 was doing it on turns and it was noticeable at cursing speeds. When I acc/dec it would go away but while maintaining a speed I could hear it.

Took it to the dealer and they rebuilt the rear end. I've heard of others getting a new rear end for the same issue.

fonegod · 02-22-2016, 03:02 PM

I had mine changed within 30 days of owning. (Tulsa, America) It did work, but 60K miles later it is back. Now they are saying that they want me to pay 600.00. Ha the dealer and GM can kiss my ass. Put the old shit back in and I will go Buy a Ford!!!! Divorces are really very easy these days...

ZO6 Bryan · 02-22-2016, 09:23 PM

Change your fluid yourself. $40

polarisiq93 · 02-22-2016, 10:35 PM

Quote:

Originally Posted by fonegod

I had mine changed within 30 days of owning. (Tulsa, America) It did work, but 60K miles later it is back. Now they are saying that they want me to pay 600.00. Ha the dealer and GM can kiss my ass. Put the old shit back in and I will go Buy a Ford!!!! Divorces are really very easy these days...

600 to change the rear diff fluid ? they did mine and it was like 150 canadian

4510 · 08-31-2016, 05:34 PM

Just starting to research this issue. Installed the ZL1 diff in my 13 SS. Having the same noises. Other than annoyance, is anything being "hurt" by it. I assumed it was just the clutches breaking in. Running Royal Purple FWIW.

06-05-2013, 10:53 AM	#17
Sven59 HAMMER PILOT Drives: 13 ZL1#182, 85 CJ7, 16 Silverado Join Date: Nov 2011 Location: Tucson AZ Posts: 4,386	I had the same issue, back to the dealer twice, first time the backlash was off, replace ring and pinion, noise went away but came back. Next time they flushed the rearend very good. They think some of the left over lashing compund was causing the whine. It has been quiet ever since and that was about 10,000 miles ago. __________________ "DO YOU WANT ME TO PUT THE HAMMER DOWN?"

02-22-2016, 09:23 PM	#26
ZO6 Bryan Drives: 02 Z06, 95 Trans Am, 2012 ZL1 Join Date: Mar 2012 Location: Southeast Posts: 1,838 View My Garage	Change your fluid yourself. $40 __________________ Bryan 2018 ZL1 M6

08-31-2016, 05:34 PM	#28
4510 Drives: 2013 2SS/RS Rally Yellow Join Date: May 2014 Location: Arizona Posts: 132	Just starting to research this issue. Installed the ZL1 diff in my 13 SS. Having the same noises. Other than annoyance, is anything being "hurt" by it. I assumed it was just the clutches breaking in. Running Royal Purple FWIW. __________________ 4510 2013 Camaro 2SS/RS-6spd- Rally Yellow / AGP Twin Turbo 2015 Challenger Hellcat-6spd- Sublime I think I see a trend here....

06-05-2013, 04:11 PM	#20
DangerZL1 Drives: 2023 Black ZL1 Auto Join Date: Oct 2009 Location: FEMA Region 4 Posts: 2,935	No. ATF is the meduim used for cooling. Otherwise the system would take more than around 2 qts of fluid to do a rear differential fluid service. I also wonder how well gear oil would circulate, especially compared to a thinner trans fluid.

06-14-2013, 10:05 PM	#21
DRTH VDR Drives: 2012 triple black ZL-1 #799 Join Date: Jun 2012 Location: Ocean Springs, MS Posts: 191	http://www.camaro5.com/forums/showpo...3&postcount=45

07-09-2014, 12:08 PM	#22
BigguyBri Drives: 2014 Camaro 2SS/RS Join Date: Dec 2013 Location: Martinez, California Posts: 3 View My Garage	My 2013 ZL1 is in the shop now. They drained and flushed the differential 3 times but the noise is still there. I was told they're contacting Detroit to see what the next step is. They've had it for 3 days now. I really miss my ride.

02-22-2016, 03:02 PM	#25
fonegod Drives: 2012 ZL1 and 2013 ZL1 Vert Join Date: Jul 2011 Location: Tulsa Posts: 17	I had mine changed within 30 days of owning. (Tulsa, America) It did work, but 60K miles later it is back. Now they are saying that they want me to pay 600.00. Ha the dealer and GM can kiss my ass. Put the old shit back in and I will go Buy a Ford!!!! Divorces are really very easy these days...