Car- 2006 Cadillac Sts 3.6L RearW/drive, 5 speed Automatic.
Mileage- 108,541
The only P code I have is a Catalyst Converter Deficiency.
I first notice the car make a suddle noise when changing gears around the 98,000 miles.
The car has now 108k miles now & makes still the same gnang, nang, gnaang noise when changing gears, but it has gotten more prolonged, and more noticeable.
I did not study to be a technician, I'm a Cnc Machine operator.
But, the first things that come up to my mind are, Clutch, Fly wheel, don't think its the transmission.
But maybe you guys can help. {blackemo}:exhausted:
Can you please make a YouTube video of your symptoms and post the link here?
When did you last change your trans fluid and filter? Automatic trans doesn't have a flywheel, it has a flex plate.
2 years ago.