Loud sounds coming from rear end - Page 2

Whis · 03-08-2016, 03:04 PM

Is there a VIN checker for this issue yet?

MikeyCamaro · 03-08-2016, 03:37 PM

The above pic of the fluid doesn't look abnormal for a first change. Fine particles are to be expected in a first change of the fluid as the parts break in. As long as there are no "chunks".

Mike

stratt · 03-08-2016, 04:37 PM

Just got back from dealer. They admitted that they put the wrong diff fluid in. They supposedly didn't see the service bulletin before changing my fluid. They flushed twice and put right stuff in.

Tushar · 03-08-2016, 04:43 PM

Quote:

Originally Posted by stratt

Just got back from dealer. They admitted that they put the wrong diff fluid in. They supposedly didn't see the service bulletin before changing my fluid. They flushed twice and put right stuff in.

Do you have more information about the service bulletin. VIN numbers and all??

stratt · 03-08-2016, 05:59 PM

Quote:

Originally Posted by Tushar

Do you have more information about the service bulletin. VIN numbers and all??

I do not. GM released something based on many cars having the same issues/sounds coming from their rear diff. They realized that some cars had the wrong rear diff fluid in it. The bulletin was released to tell the dealerships which fluid to put in. IF YOU GO TO DEALER TO HAVE YOUR REAR DIFF FLUID CHANGED FOR THE FIRST TIME TELL THEM ABOUT THE BULLETIN! Their manuals have the wrong fluid listed in it. They had no idea until I told them about it. Go figure.

Tushar · 03-08-2016, 06:03 PM

Quote:

Originally Posted by stratt

I do not. GM released something based on many cars having the same issues/sounds coming from their rear diff. They realized that some cars had the wrong rear diff fluid in it. The bulletin was released to tell the dealerships which fluid to put in. IF YOU GO TO DEALER TO HAVE YOUR REAR DIFF FLUID CHANGED FOR THE FIRST TIME TELL THEM ABOUT THE BULLETIN! Their manuals have the wrong fluid listed in it. They had no idea until I told them about it. Go figure.

Thanks!

SSport16 · 03-08-2016, 08:09 PM

Quote:

Originally Posted by stratt

I do not. GM released something based on many cars having the same issues/sounds coming from their rear diff. They realized that some cars had the wrong rear diff fluid in it. The bulletin was released to tell the dealerships which fluid to put in. IF YOU GO TO DEALER TO HAVE YOUR REAR DIFF FLUID CHANGED FOR THE FIRST TIME TELL THEM ABOUT THE BULLETIN! Their manuals have the wrong fluid listed in it. They had no idea until I told them about it. Go figure.

What did yours sound like/act like?

Goobaba · 03-09-2016, 01:09 PM

Update: When I show up at the dealer, the car is warmed and the noise is not present. Also contacted Chevy customer service, said there were no service issues associated with my VIN.

So just took it home. Big waste of effort.

Furthermore in the two days the dealer had my car, temps went from freezing to warm and sunny. This morning the noise was almost completely absent. Could be related to ambient temperature.

stratt · 03-09-2016, 01:21 PM

Quote:

Originally Posted by SSport16

What did yours sound like/act like?

On slow turns made growling sound like tires were rubbing.

SSport16 · 03-09-2016, 02:10 PM

Quote:

Originally Posted by stratt

On slow turns made growling sound like tires were rubbing.

Oh ok...still trying to isolate my noise. Low squeak coming to a stop, even without brakes engaged. Acts a bit rough from time to time, feels like "grabs" or locks, but does not seem normal.

Marty McFlew · 03-09-2016, 04:00 PM

Sooo...the fluid is contaminated from the factory??

Whis · 03-11-2016, 12:47 AM

Quote:

Originally Posted by Marty McFlew

Sooo...the fluid is contaminated from the factory??

Bump

ChipperG · 05-22-2016, 09:04 AM

They ended up replacing my diff completely and 600 miles latter I blew that one up and it's at the dealer now!

03-08-2016, 03:04 PM	#15
Whis Drives: 2016 2SS Hyper Blue Join Date: Oct 2015 Location: Kansas, soon! Posts: 995	Is there a VIN checker for this issue yet?

03-08-2016, 03:37 PM	#16
MikeyCamaro Drives: 2015 Challenger SRT Join Date: Jan 2016 Location: West Florida Posts: 147	The above pic of the fluid doesn't look abnormal for a first change. Fine particles are to be expected in a first change of the fluid as the parts break in. As long as there are no "chunks". Mike

03-08-2016, 04:37 PM	#17
stratt Drives: Waiting on my 2016 Camaro 2SS Join Date: Dec 2015 Location: North Carolina Posts: 497	Just got back from dealer. They admitted that they put the wrong diff fluid in. They supposedly didn't see the service bulletin before changing my fluid. They flushed twice and put right stuff in.

03-09-2016, 01:09 PM	#22
Goobaba Drives: 2016 V6 RS Manual Join Date: Feb 2016 Location: ATL Posts: 109	Update: When I show up at the dealer, the car is warmed and the noise is not present. Also contacted Chevy customer service, said there were no service issues associated with my VIN. So just took it home. Big waste of effort. Furthermore in the two days the dealer had my car, temps went from freezing to warm and sunny. This morning the noise was almost completely absent. Could be related to ambient temperature.

03-09-2016, 04:00 PM	#25
Marty McFlew Banned Drives: 17 SuperSport Camaro 6 on the Flo' Join Date: Feb 2016 Location: USA Posts: 1,507	Sooo...the fluid is contaminated from the factory??

05-22-2016, 09:04 AM	#27
ChipperG Drives: 2016 Camaro SS Join Date: Apr 2016 Location: Richmond Hill GA Posts: 8	They ended up replacing my diff completely and 600 miles latter I blew that one up and it's at the dealer now!

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