Streetz

Hi Folks hope everyone is doing well. My truck is a 2019 LT 5.3 2wd 8speed. (36k Miles) It has developed this sound in the last few months, it is a (high pitch) click sound similar to if you got a screw driver and tapped it against metal. I put my ear on the actual drive shaft and seems like its coming from inside closes to the ujoint, i dont know the inner construction of the drive shaft but perhaps the sound could be coming from the ujoint and just resonating out the end of the driveshaft. Where: The sound is at the back portion of the drive shaft. When: It happens when you release pressure from the ujoint it seems. When you let off the gas after acceleration When you shift from Drive to Neutral Always happens during these conditions. sometimes its a single click, often is double click. Has anyone had this issue and resolved it? I would greatly appreciate any help or advice. Thank You!

Hey folks, I have been experimenting with my 2019 and I want to add some observations to this thread, some which have already been confirmed but adding it anyway. I installed a cutout so now I can hear everything that the engine is doing, which is wild how many variations of sounds it makes. Driving in L7 does in fact disable DFM on all gears up to 7. Once you set it to L8 then DFM turns on right away, for example if you're cruising at 40 or 60 in L7, then change it to L8 or move the shifter to Drive, you will hear it change the tone to the helicopter sound that's been mentioned before on louder exhausts. This week iv driven in mostly L7 and let me tell you, it makes the truck much funner to drive. I also have been messing with the sport mode in combination with L7 and I have noticed that when in sport mode the torque converter takes longer to lock up, I think it still locks at the same speeds but it takes longer before it engages while in normal mode the converter wants to lock almost all the time, even at very low speeds vs. the traditional 40mph lock up on older cars/trucks. In regards to fuel consumption I do not have enough data yet but from what I can see, letting it go into 8th gear and turn on DFM does give you better milage (the live MPG indicator goes all the way full). So moving forward if I am doing some city driving with a lot of stop and go, i'll be putting it in L7. If I am going to cruise on the highway i'll leave it in drive or L8. If I want to have fun, L7 and sport mode.

It is possible that could be done, in my case I like to tinker so I try to come up with my own solutions. What I have done so far is to purchase an inexpensive mirror dash cam that straps onto the factory rear view mirror (some of them are a replacement instead of attachment). This particular one has a camera attached to the mirror on a swivel that you can rotate around and aim it where ever you want, it also has a second camera where you can mount where you please. This second camera is meant to be a back up camera so you can provide 12v to the wire it comes with to automatically switch it to that camera or you can swipe with your finger on the mirror to change cameras. In my case I created a mount with a 3d printer to attach the camera on my rear window facing the bed and rear of the truck. I just did this today and I love it, now I will be able to see back with no seat head rest obstructions and get a full wide view of the back outside. My next step is to get a 3rd camera that will be mounted on the grill. I have figured out the wiring on these cameras and I ordered a switch/knob where I will run the the grill camera and the rear camera into the switch, then I can easily turn the knob to display which ever I want. These dash cams in general have a four pin TRRS 2.5mm radio plug that includes video, power, ground, and another for the reverse trigger 12v. The 3rd camera I purchased comes with a typical yellow RCA, then has a 12v plug, so i'll be wiring the 12v to some source from the truck, then write the rca into the knob and from there to the 2.5mm plug that goes into the camera. Its a fun little project and so far I love the fact of having that rear view like the high country has. If I am able to post amz links here ill share what iv gathered. Here is a picture of how I mounted the rear camera:

I have basically accepted it, I take it as just typical engine/exhaust rumble and backfiring on decelerations.

I found this information, it could be related, for now I will ride it out and see how it goes. https://topclassactions.com/lawsuit-settlements/consumer-products/auto-news/904626-gm-class-action-alleges-transmission-shake-defect/

Fantastic post, thank you very much for putting that together. So far I have gone with the mirror solution that includes two cameras, one mounted on the mirror and the other is meant for reverse. I have found a location on the grill for it and will be using your guide for the wiring route and fishing. You also cleared up on where to run through the firewall so thank you again for the details.

Hey guys, I have a 19 5.3 8speed and I too have the rumble, since day one. My theory is that the converter remains locked while the truck is downshifting and engine breaking. If you accelerate with light throttle and get to a cruising speed at around 30mph, you can feel it locked. I am familiar with the feeling because iv experimented a lot with locking a converter manually at different scenarios like on low speeds (different vehicle). Its the only thing that makes sense. I think this was mentioned in this thread. If this is the case then it could likely be solved via software to disengage the lockup when engine braking at low speed.

Hi there, I am interested un knowing how your system turned out, have to changed it? I have been researching this a bit and I have some options I am considering. 1. Getting a 360 bird view camera system from china. Some come with an lcd screen. Or without an LCD, as a analog yellow video rca line (I havent found a system with AHD output). 2. Get a 4ch mirror dashcam. They have them where you strap it to the existing rear view mirror or an a swap. Rhey are very good quality and HD. These are not a bird eye view but you can see all around. The Downer is that the front camera is fixed into the mirror/display, so if you want front bumper view you need to sacrafice a side mirror. So you end up with two front views, a side view, and rear. They record all the time too. I may do this. 3. Wait till they come out with a reprogrammed display unit. Theres a couple of companies that swap with you the unit and you can then have multiple camera inputs and views. Also hdmi input. Its built into the display, you have icons and many options. They have 2018 but so far I have not cone across a 2019 compatible unit. 4. Figure out how to tap into the rear camera stream. Considering I have a non HD camera on my 2019, I may have regular rca lines. If i can replace the camera with my own feed I can use that birds eye view system. Then figure out how the display switches to reverse, hoping it's just one wire. Put hat on a switch and be able to activate reverse to display the video coming from the bird view system. They come with a remote to control what's displayed.

Hey guys, wanted to share that mine 2019 LT with 8in screen has a poor grainy camera, even flickers like a 80s tv. I am considering looking into the wiring to see if it can be tapped into using an aftermarket camera.

Hi folks happy new years. I'd like to share to the thread that the 2019 Silverado LT camera that I have has very poor quality. I have a loner Traverse and the quality is nearly HD like quality night or day. The Silverado camera is grainy and even flickers.