Rough shift into overdrive

[Majestic]

During the recent cold weather snap, I've noticed that my car will sometimes make a slight clunk when shifting into overdrive. It's fine in the other gears and doesn't do it all the time. I haven't looked at the fluid yet but it seems strange to only do this into overdrive.

2013 SHO, btw.

 

[kryptto]

Well my first suggestion you listed - check the oil level. I assume its not just when the car is warming up, but after its been running? Getting any codes? Mounts and their condition?

 

[Majestic]

No codes. Mounts are all original and appear to be fine. I'll check the fluid tomorrow as the temps are supposed to be tolerable.

 

[SHOdded]

cold weather will do odd things but so will a weak battery. i would check battery health v/cca when the fluid check is done.

usually a transmission clunk is from the torque mount or the solenoid body assembly.

may be as simple as fluid not warm enough. trans fluid takes a lot longer than the engine to warm up.