JK29

Hey guys, below is what fixed my issues with my 2016 1500 Silverado LTZ Z71 4x4 with the 8 speed and 5.3L: Scan'ed vehicle for codes and none found. Test drove and duplicated issue. Searched for bulletin and found #PIP5228D. Fixed that (exhaust dampener). Re-seated body mounts. Vibration reduced but not fixed. Found 16-NA-175. Test Drove vehicle with TCC Commanded off and vibration not present. Removed transmission from truck and removed and replaced torque converter. Removed and replaced transmission filter and flushed cooler. Filled transmission and test drove = vibration not present. Problem seems to have been corrected. I didn't notice anything on my 15 min drive home at any speed. They said today that mine was the first one they've seen, but they got two more of my generation with the same issue this week. Cheers, JK29

Hey Buckem, Mine has the RPM "flutter" as well every time the truck shudders. It swings about 150-200 RPM each shutter. My truck is 100% stock. It also goes away on deceleration.

I have a 2016 Silvarado LTZ Z71 4x4 with the 8 speed... About 13,500 miles on it and it's started to develop a "shudder" and it's been shifting harder. On cruise control it will shudder at around 1300 rpm. I've driven it in manual on new roads at 35 MPH and it also shudders. We're talking about vibration enough to shake the steering wheel. Almost the same effect as driving over bumps in the road. When driving it like as **** at higher RPMs the issue isn't as severe. Also when drifting, letting the vehicle decelerate, the issue goes away. Coming here I see there is a 772 page thread on the topic.... Any glaring conclusions? Talk about frustrating... Thanks for input, JK29