Christopher Krumholt

I had the same problem. when i could come to a stop its liek some one kinda hit me from behind. If i would manually downshift it would not do it. I brought it to my father in laws transmission shop and he rebuilt the transmission. He said something about a sprag. I paid 1400 to have it rebuilt and its like new.

bobino

I just got my yoke replace as the direct result of a clunking resulting into a broken weld on the yoke itself. the result of a clunk from the back, moved into the drive line to actually making a kicking back motion right at the yoke connecting to the transfer case. I had it fixt under warranty, however just buying time again until next time. I had a feeling that i also share with Gm there is a cause of this problem and they say its normal because of the 6 speed transmission. GM reply- There is to many gears angaging and disangaging. I call bull****t, I think there is a flaw, and that could result into a major call back to fixt it. Now |I dont think ever happen
They should be exposed for missinforming peoples like me, that just bought a new truck and stuck with a noise that will never go away.
Never again GM could kiss my *** and will make sure that I WILL NEVER A WANNA BE TRUCK

Chevrolet Customer Service

<!--[if gte mso 9]><xml> <w:WordDocument> <w:View>Normal</w:View> <w:Zoom>0</w:Zoom> <w:PunctuationKerning/> <w:ValidateAgainstSchemas/> <w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid> <w:IgnoreMixedContent>false</w:IgnoreMixedContent> <w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText> <w:Compatibility> <w:BreakWrappedTables/> <w:SnapToGridInCell/> <w:WrapTextWithPunct/> <w:UseAsianBreakRules/> <wontGrowAutofit/> </w:Compatibility> <w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel> </w:WordDocument> </xml><![endif]--><!--[if gte mso 9]><xml> <w:LatentStyles DefLockedState="false" LatentStyleCount="156"> </w:LatentStyles> </xml><![endif]--><!--[if gte mso 10]> <style> /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} </style> <![endif]--> bobino,

I'm sorry you experienced this issue with your vehicle. Have you contacted Customer Service regarding this issue? If so, would you please PM me the SR# so I can look into this further for you?

I look forward to your reply.

Louis
GM Customer Service

heyroad

Will this cause damage on my 2007 new body?

mb.gov

I'm new to the Forum and very disappointed by the frequency of "CLUNK" reports. My 2012 Silverado 4x4 LTZ has what's been diagnosed as the "CLUNK" and witnessed as a JOLT and SLAM. Every driving condition produces it. Absolutely nothing has been attempted to repair the defect. I'll mention the lubricant bandage next time its in for service. Also, do these forum comments every yield more than an apology from customer service? I'm beginning to wonder if GM may be encouraging its most faithful customers to try a FORD.

mb.gov

I've read through several postings of the "CLUNK" drivetrain phenomena. I've received a message from a Customer Service representative seemingly apathetic assurance of concern. There was a suggestion of direct contact being one personal communication away. Unfortunately, the immediately following link, or what appears as a link, takes one to an advertisement.


How does one get an audience with a Texas licensed Professional Engineer at GM/Chevrolet that can confirm or deny any corrective actions, any risk to owners and passengers, and or whether this "CLUNK" is found in GMC vehicles, as well?


All ideas and suggestions are welcome.

Tez463

I am Having this very same issue with my 2009 Tahoe LT.

ristpin

Clean the front spline and get some GM lube PN. 1#12345879. Apply a thin coat to the yoke spline. Cured my "clunk" on 2 different Chevy Silverados.