CWes

Update on my ‘23 Silverado LT Trail Boss 3.0 LZ0: Originally took it in June 4th. Picked up August 1st. In total the following was diagnosed and addressed: Replaced Valve Body (part #24047995) - Can anyone verify if this is a new or old part #? Replaced Pressure Control Solenoid Valve 1 & 5 Replaced Input Speed Sensor Replaced Torque Converter Haven’t had time to put a lot of miles on it since picking it up a week ago, but have a trip planned next weekend, so hoping everything will be good from here on out. My concern is the now infamous Valve Body, and whether this is a new designed part? I assume it is, as this seems to be what others are reporting that have gotten theirs back recently, but also not sure if the part is different since I have a diesel versus the gas counterpart? I would appreciate anyone’s insight into this! To all those waiting, hopefully you’ll get yours back soon!

I spoke to my dealership yesterday and was told the same thing. They are looking at end of July/beginning of August for the part. This would mean the truck has has been/will be in the shop for 3 1/2 months out of the first 14 months of ownership (assuming that it back in my possession by early August).

Hello everyone and thanks for adding your experiences and advice to the forum! I have a 2023 Silverado LT Trail Boss with the 3.0 LZ0 Duramax purchased a year ago (06.08.23). Previously, my truck went into decreased acceleration mode, prompting a six week trip to the dealership to replace the coolant pump (which was on backorder). This adventure took place between February 1st and March 13th of 2024. It had 9,292 miles on it at the time. During this time I had two different loaner trucks from my dealer. Both with the 5.3l engine (one was a LT Z71, the other a LT Trail Boss). When driving these, I noticed how much smoother the transmission shifted (they were probably 2024s?), and how harsh mine was when I finally got it back. On Tuesday, June 4th while driving home from work my struck started shuttering while cruising (cruise control on) at 60 mph. Then it went into decreased acceleration mode and revved up in RPMS (usually its around 1k, now around 3k). I called the dealer from my truck to alert them of the problem and begin discussions about bringing it in that day. I stopped home briefly with the intention of taking all of my personal things out of the truck (because the last time was six weeks), but the truck would not shift into reverse. I then skipped that step and drive directly to the dealer. A week later I received word from the dealer that they found two issues. The first was the input speed censor. The dealer said they should have that next week. The other is the valve body, which is on backorder for an unknown amount of time. I didn’t think to check the mileage at the time of drop off, but it is less than 12k. While I understand things happen, this is now three issues that have happened in less than a year of ownership. Not counting the unknown timetable for the valve body, the truck will have spent two months out of twelve at the dealership. In addition, we have family trips planned for this summer and were in the process of buying a travel trailer to take the kids camping, all of which was the purpose of buying this vehicle. Additionally, an argument can be made that this is two plus months of warranty that I’m losing out on because the vehicle is sitting at the dealer waiting to be repaired. We should get credit for this toward our 60 month warranty and have it extended accordingly, as most issues arise from USING the vehicles. I am being patient for the moment, but given my experiences so far and after reading about others, I am losing faith and confidence.