Blanz

Good afternoon guys and girls, Was reviewing a copy of GDS2 (GM Dealer level Diagnostic software) and I'm able to work my way through the software to get to the DFM solenoid page: Path: Module Diagnostics/(K20) Engine Control Module/Control Functions/Cylinder Deactivation. Once I land on the last page, It is a screen that lists Cylinder 1 (& 4,6,7) Deactivation Solenoid Valve Command. I was able to click on the "Disabled" button, followed by the "Lock Parameter" icon button. It would appear that it may be able to locak down the actuation of the solenoids. What I'm not sure about is if it hold this in memory or will revert back to activation upon the next ignition cycle. If we have any GM techs out there that are familiar with GDS2, could you guys chime in with a response. Thanks in advance. Bill.

Also installed one of the newer units and works as advertised. Good quality product. One less thing to do after starting the vehicle!

UPDATE_4: Dealership completed the evaporator replacement and did a relearn on the transmission. The mechanic actually did a bang-up job reconstructing the cab and everything is working fine, especially the AC. I'm sure the 8-speed transmission will be the same, as they did not do the flush since the transmission already had the new Mobil 1 ATF fluid from the factory. I have crafted a letter requesting a repurchase or replacement of the truck and sent it off to GM this afternoon. I'll keep you guys posted once I hear back from them. The attached image was at the final tear-down when they were waiting for the replacement evaporator. Remember, no matter what issues you may be having with your truck, it could always be worse! Bill. .

UPDATE_3: Dealership service manager called and said the evaporator coil is back ordered and there is no ETA at this time. They have finally given me another Silverado to use while they wait on the coil. I can’t make this shit up! I continue to update my letter that will go through an attorney before sending to GM requesting a replacement vehicle. I’d have better luck in a used Yugo for Christ sakes.

Thanks for all the kind words of encouragement on this fiasco. I'm going to be working on a PowerPoint with timeline and will be contacting customer support to start working on getting this one taken back and a new one ordered. This is going to be like pushing a rope uphill through a brier patch.

UPDATE#2: Stopped by the dealership shop and here is what my 2019 Silverado RST with 2,300 miles looks like when your replacing a defective Evaporator coil! He is only 80% in, as the cross-beam support still needs to be removed before the HVAC box can come out. Hope for everybody else sake that this is not a systemic issue from the HVAC supplier. Maybe I'm the one in a million, should have played the lottery instead. So much for a new truck!!! Bill.

Mine is currently in the shop with an Evaporator leak that has rendered the system ineffective. And yes, the evaporator requires the dash to be removed! I have 2,300 miles and I'm already pissed off that I went with the Silverado.

UPDATE: Link for the transmission shudder issue from GM techlink publication. https://gm-techlink.com/?p=11127 Well its been only four months and 2,300 miles and I'm already at the dealership service department with two major issues. 1) AC stopped blowing cold air a few days ago, WTF! 2) I've have the infamous 8-speed transmission shudder from takeoff to second gear since day one. Here's the news I got from the service department today: The AC system is leaking at the evaporator and the console and the entire dash will have to be removed to replace the evaporator coil. For the transmission issue, they have a TSB that has them flushing out the transmission and Torque Converter and replacing with a Mobil 1 product (was hoping for a software update but no luck there). Best part (sarcasm here) is they have asked me to take back possession of the truck until July 9th before they can get to both issues! I cannot imagine the amount of broken plastic clips I'm going to wind up with once they get the dash back in. Really GM!!! Oh my ache'n ass! More to follow... Bill.

The cubby takes well over 28 hours to print, and the bezel around 7 hours. Then painting the bezel and joining the two, followed by lining the cubby with felt, cutting the headliner, and install. Was a labor of love to say the least, with some puckering of the “A” hole during the cutting of the headliner. I would love to produce and sell these, but the fabrication labor, materials and having to supply a cutting template would put the price too high for anyone interested. I will gladly share the .stl files for those that would like to 3D print on their own. Just pm me or send me your email address and I’ll supply the files. Bill.

Design, fab and installation complete. See YouTube video below.

No door for now. Will have a foam mat on the bottom to keep the sunglasses from sliding around.

Have been totally satisfied with my new 2019 Silverado RST for the most part, with only very minor gripes about the new body. One small thing I do miss is the sunglass cubby by the overhead console. Yes, small annoyance but I really don't like to leave them on the dash tray in the sun, on in the console tray area. My truck does not have a sunroof, and the area in the headliner for the motor is a real nice cavity just waiting for someone to design and fabricate a cubby. To that end, I taken the plunge and designed a cubby with a bezel to occupy that area. Yes, this means I've got to have the balls to cut the headliner, take measurements for the cubby, design it, 3D print it, and have it look half way decent when installed. At this time, the cut has been made, the design has been completed, and the prototype is being printed from Nylon X filament. I've included some initial images of the work in process. Last image is a rendering of the 3D model superimposed into the truck. Stay tuned for installation and completion. Bill.

Curious why the Ram half tons have them and the past Silverados did not.

Does anyone know if any of the packages came with an optional rear sway bar? Would like to know if this would be a potential upgrade for my RST crew cab. Thanks in advance.

Look in the console. It should be on the front wall on the inside upper edge.