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GM TSB check? CTS Differential leak


zeitgeist57

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My 2007 CTS-V is making a stinky burning-gear-lube out of the rearend after it’s been driven, like diff fluid is leaking on the exhaust.

 

Just saw 3 drops of fluid where the car was sitting. Haven’t gotten it up in the air yet, but Googled and found a TSB for a leaky diff vent issue.

 

https://ls1tech.com/forums/attachments/cadillac-cts-v-2004-2007-gen-i/348664d1333919205-rear-diff-vent-instructions-pictures-tsbdiferentialvent_.pdf

 

Is there any way to validate whether my car was affected by this, or if I can still have the repair done?

 

EDIT: I guess I’m not sure the difference between a recall and a TSB...

Edited by zeitgeist57
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