Originally Posted by ale91613
I think I might have the same problem you had.. it started doing that since a few days ago.. now today I was coming in from work this morning and I was pulling In the driveway and just as the engine rev down and chanved to a lowered gear I heard a loud knock.. never had it like this before, im really dissapointed if I have to get a new transmission... makes me wonder if I did right on buying this car..
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Truly sorry to hear about this. Have you made an appointment for an official diagnosis at a GM dealership? If not, I'd be more than happy to do so for you and monitor the repair process. Feel free to PM me anytime regarding this matter.
Chevrolet Customer Care