Snelson75077

I have a 2021 Silverado 1500 LTZ, 3.0L diesel. At the beginning of summer, I noticed a rattle that sounds like beans in a can at about 750 rpm. Happens in park and while the truck is in drive, but only around 750 rpm. I checked the heat shields. If I put pressure on the pipe while it is happening, it goes away. If I tap on the exhaust pipe, I can hear a rattle that sounds like it is coming from inside the pipe. If I put pressure on the pipe while tapping on it, the sound goes away. Seems to be somewhere starting at the mesh flex pipe or beyond towards the back of the truck. I’m under warranty, but wanted to see if anyone else has encountered this before I go to the dealership. I’m sure they will tell me this is normal, so wanted to have some ideas before hand. Thanks.

Thanks. The issue happens randomly, about 50% of the time. The setting was set to “Auto”, but I went ahead and specified 30 to see what happens. Appreciate the suggestion and will let you know what happens.

Has anyone had the issue on the IOT and infotainment system, when scrolling (swiping) through the channels at the top of the IOT, it will automatically scroll backwards to the first set of channels? I have included a video below. I have a 2021 Silverado LTZ and thought I would ask here before heading to the dealer. Thanks. IMG_4504.MOV