View Poll Results: Rear Diff groan by the numbers | |||
I have NEVER had the groan | 135 | 27.22% | |
I have the groan and need to take the car to the dealer | 211 | 42.54% | |
I have changed the diff fluid and do not have the groan | 39 | 7.86% | |
I have changed the diff fluid and the groan returned | 53 | 10.69% | |
I have changed the rear diff completely and do not have the groan | 11 | 2.22% | |
I have changed the rear diff completely and HAVE the groan | 26 | 5.24% | |
I have changed the diff fluid more than once and do not have the groan | 5 | 1.01% | |
I have changed the diff fluid more than once and have the groan | 8 | 1.61% | |
I have changed the rear diff completely more than once and do not have the groan | 3 | 0.60% | |
I have changed the rear diff completely more than once and HAVE the groan | 5 | 1.01% | |
Voters: 496. You may not vote on this poll |
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09-13-2017, 08:02 PM | #99 |
Took my 2016 A8 in for the issue. They looked up the service bulletin, changed the fluid under warranty and I was on my way. No questions asked.
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09-13-2017, 08:02 PM | #100 | |
Drives: Wild Cherry LT1 Join Date: Dec 2016
Location: Massachusetts
Posts: 1,935
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09-13-2017, 08:07 PM | #101 |
My car is getting its second diff fluid change tomorrow. They did the first about a month ago, I put 800 miles on it, and iwas still groaning. But the I would say the groan was 75% of what is was. Service manager said they may have not gotten all the original fluid out on the first fluid change...
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09-13-2017, 08:12 PM | #102 |
SoCal HT5! SD
Drives: 2016 red hot 2ss M6 Join Date: Nov 2011
Location: San Diego CA,
Posts: 1,929
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Never had the groan. Did a diff fluid swap a few days ago @ ~13k miles. Fluid was SILVER, and stunk to high heaven.
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By my deeds, I honor him. V8!!! |
09-14-2017, 08:57 AM | #103 |
Drives: Challenger SP Shaker/Arcadia Denali Join Date: Jan 2016
Location: New York City
Posts: 1,928
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Going on 2 years and still got the groan after 2 diff fluid changes. I gave up on it... I will avoid the dealer at all costs unless its minor which to me this isnt.
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10-18-2017, 07:38 AM | #104 |
Drives: 2017 LT Turbo/6Man. Join Date: Jan 2016
Location: West Virginia
Posts: 53
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2017 4 Turbo/6 Man . I understand that I have the limited slip rear diff. Turning left mostly but right also I have the groan. Seems worse when cold.
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2017 LT Turbo4/6sp.Man.
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10-18-2017, 07:47 AM | #105 |
376 cubic inches of fun
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Diff groan was much discussed in Gen5 as well.
I had some groan and got the oil changed. The groan diminished but on cold starts, sharp turns particularly in reverse are not silent. It's the nature of the limited slip to make some noise as the discs are slipping. My 2010 now has about 64,000 and the slight groan hasn't gotten any worse. The limited slip does its job when mashing the gas, too. I had a rental jeep once that had obviously had its diff oil replaced with the wrong stuff. This was in Costa Rica. When you backing this car up while turning, it sounded almost like a collision as the diff grabbed and then released. That would be a problem! |
10-18-2017, 08:20 AM | #106 |
Drives: 1979 Corvette Join Date: Mar 2017
Location: Chicago, IL
Posts: 56
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For what it's worth I read up on this issue shortly after buying my 2017 1SS and had my dealership change my oil and diff fluid at 500 miles. No groan at all. I would recommend an early diff fluid change (even if the service tech does look at you like crazy).
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10-18-2017, 08:56 AM | #107 |
Drives: 2016 Camaro 2SS Black.. Join Date: Jul 2017
Location: VA
Posts: 54
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Ive had my differential fluid changed out a month ago. Still had the groaning. Two nights ago the differential took a dump on me and left me stranded in the middle of the night. I had it towed into the dealer that night. Next day they called me and confirmed that the differential was toast and they ordered a full assembly to be replaced under warranty. So, my advice to anyone with this issue is to keep taking it in because at some point it will fail. I took my 16 2ss in at least four times for this issue. Was told over and over that it was normal and that even with the fluid changes at some point the noise would come back. Very disappointed. Hopefully this will take care of the issue for me. Will see what happens Friday.
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10-18-2017, 02:47 PM | #108 | |
Drives: camaro Join Date: May 2013
Location: Stony Brook,NY
Posts: 1,756
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Quote:
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10-19-2017, 04:49 AM | #109 |
Drives: 2016 Camaro 2SS Black.. Join Date: Jul 2017
Location: VA
Posts: 54
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I cant say I blame you. Its very irritating that GM doesn't stand behind their product. I'm just hoping that this will fix my issue with it. But question is what will break next.
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10-19-2017, 06:21 AM | #110 |
I am on third flush and started groaning again but only on cold start. I give up.
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10-19-2017, 09:04 AM | #111 |
Drives: 2016 Camaro 2SS Black.. Join Date: Jul 2017
Location: VA
Posts: 54
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I just got a call from the dealer. They are also replacing the axles. Must have been really bad. Sigh sucks
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10-19-2017, 09:10 AM | #112 |
Drives: Challenger SP Shaker/Arcadia Denali Join Date: Jan 2016
Location: New York City
Posts: 1,928
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I had 2 flushes done last year and said fuk it, when my lease is up they can deal with the noise. I can't waste any more time trying to get something fixed that won't... Now that the colder weather is here the noise is coming back in full force. Good job GM!!!
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