Hard Downshifts - Is This Normal?

[jerkyboy]

Have an '18 Silverado 1500, 5.3L, 6spd auto. It's got about 17k on it and I've only had it for a month or so. I've always noticed that it downshifts pretty hard, so hard it almost clunks and you can always feel it.. I'm not 100 percent certain what gear but I think it's second. Is this normal? My old truck was a duramax with an allison tranny and I never experienced the hard downshifts.

[bigskyindy]

Might be your torque converter, they changed fluids in mine because gm has changed the fluid that is supposed to be used in it like 3 times and it fixed my hard shifting.

Sent from my SM-G950U using Tapatalk

[1SLOW1500]

I would try manual shift with the button and see if it does it. But sounds like you need to at least reset your trans adaptive tables.
I know you are in warranty and all that good stuff but I would drop pan clean and check fuild replace and reset. Then see after that if still issues talk to gm.

Sent from my SM-N960U using Tapatalk

[Jacoby]

It’s normal

[1SLOW1500]

It’s normal

Really? I have not had this but I have 11k and built trans so maybe not a good example. I know of many issues with converters,fluid, even driveshaft.and axles.

Sent from my SM-N960U using Tapatalk

[CamGTP]

Depending on what gear the transmission is currently in and what gear it downshifts to, it will do what you can call a pass through neutral. It will be a direct change from gear to gear without it going through another gear to reach it.

 

I think 5-3 downshifts and for sure 6-2 downshifts are this way. The computer in stock form will yank timing all the way back to -20 degrees to help smooth this out but you're still going to feel that gear change.

[1SLOW1500]

Thought maybe the fuel deactivation does this as I have read people complain about it. I don't know I disabled all that. But makes sense.

Sent from my SM-N960U using Tapatalk