BlueDMax

Good to know. 2020 truck? Did you have to fight with them at all?

Funny enough, I watched this video last night. Cringeworthy for sure.

I have a situation... 2020 Silverado purchased in January 2020 with 4 miles. Fast forward 6 years to January 2026. I started the truck one cold afternoon and the check engine light is on. I scanned it and found P0016. Fast forward again, and I'm waiting for parts to come in to replace the timing chains, tensioners, sprockets and oil pump belt. Here's my rub. I think it's crazy that GM wants me to pay for most of this repair knowing damn well that GM would have covered this a year ago under warranty. This truck has less than 80K miles on it, but I'm a year out of the factory warranty. GM is offering to cover 30% of the repair bill and I have to pay 70%. There is no way a timing chain with that low miles on it should ever stretch. My truck has had all maintenance done at the same dealership it's at now; all oil changes, recalls, emissions issues, etc. I think GM bet that anyone with the flawed timing chain (it's very well documented in places like here, here, here, here, and here) would have the symptoms show up with it's still in warranty and they'd just address it there. I didn't drive my truck a whole lot in the first few years I had it due to working from home during COVID. This should not be on the dealership to "step up and comp a repair". This is a faulty part and should have been recalled. If the part WASN'T faulty, they wouldn't have redesigned the chains within a year. I have a case open with GM (93268624) in case anyone that works in GM customer service is reading this. I've asked to speak with someone empowered to make decisions and that is technical so they can explain to me how a faulty timing chain design with a lack of lubrication is the problem of 10s of thousands of us that purchased a 2020 LM2. I guess next step will be BBB and NHTSA.

Any updates? I have a Crutchfield cart full of Hertz speakers/subs and an Audiocontrol lc5.1300. I don't have Bose, so the truck sounds like hot garbage now.

Love my diesel. I tow my 7500lb TT down the highway at 60-65mph and the truck stays in 10th gear at 1400rpm most of the time. It’s quiet and powerful. It is not going to win a race very often, but I didn’t buy it for that. I bought it to tow my camper. My trip to work (whenever I go back to the office) is 33 miles 1 way and all highway. The diesel, for me, was/is the best option. Chris Sent from my iPhone using Tapatalk

Yeah man! I still can’t decide what I want to wire to them. Thinking footwell lights on one Light bar/pods on another Rear bumper lights on the third Then? Sent from my iPhone using Tapatalk

OUCH on the shipping. Sent from my iPhone using Tapatalk

Just want to let you guys know that originalgmautoparts.com has 84942073. They operate out of Vic Canever Chevrolet in Fenton, MI. $150 including tax for the whole kit. I live local so I went and picked it up this morning to save the shipping cost. I asked them how they got it because so many of us are having issues finding it. He said it was not an issue at all. Parts were on site in 3 days. Told him I was putting his info on this forum and to expect some orders. Can't wait to get these installed. Lot's of fantastic info in this tread. Kuddos to you gentlemen for taking the time to help the greater good.

Just want to let you guys know that originalgmautoparts.com has 84942073. They operate out of Vic Canever Chevrolet in Fenton, MI. $150 including tax for the whole kit. I live local so I went and picked it up this morning to save the shipping cost. I asked them how they got it because so many of us are having issues finding it. He said it was not an issue at all. Parts were on site in 3 days. Told him I was putting his info on this forum and to expect some orders.

I’ve noticed with mine that if the parking brake is off and I put a load in the bed (bags of dirt, hitch a heavy trailer etc.) the brake automatically sets. I can hear it engage when I’m loading. Sent from my iPhone using Tapatalk

The only time porpoising is not utterly awful is when the truck is sitting still. Lol. Buddy of mine has a 2012 Sierra 1500. 130000+ miles of abuse and it rides better than my truck loaded, unloaded or otherwise. Too many folks these days want trucks to ride like Cadillacs. Sent from my iPhone using Tapatalk

This is pre-bags. I also adjust the hitch down 1 notch to account for the truck raising up with the bags. Sent from my iPhone using Tapatalk

I tried to buy them from gmpartsdirect but they immediately cancelled it. I bought fog lights at the same time and I’ll have the dealer install them at my next oil change. Will talk to the parts guys when I’m there about the upfitter switches. Sent from my iPhone using Tapatalk

No problems here in the Detroit, Michigan area. Never plugged in. This is my second winter with it. Sent from my iPhone using Tapatalk

I read through this whole thread. It sounds like the exact same issue I have when towing my camper. I just bought the camper late summer 2020. It's 34ft overall (30 ft box) and 6950 empty. We stayed local for the 3 or 4 trips we made so I could get used to the setup, driving and having kids/dogs and everything else going on in the truck. This is the first time in all my research I've found someone describing the EXACT same thing I feel when towing this thing. I have a Blue Ox WDH and bags on the back with onboard air. I've tried the 8th link, 9th link and 10th link. I've gone from 15lb of air in the bags to 40 and everything in between. I can't get rid of what I call the tire wiggle. If you kick the side of the back bumper of your truck, the truck wiggles. These tires wiggle A LOT. Put 850lbs of tongue weight on it and it wiggles more. So when towing, the trailer doesn't "sway" in the definition of sway, but the back of the truck wiggles. The only way I can think to describe it is it feels like the back end starting to kick out when you hit black ice. Pretty unnerving. In speaking with some buddies who are more seasoned at towing than I am, it's a soft tire issue. The tires on these trucks are NOT meant for towing what I tow. So E rated tires are in my future before the first trip in the spring. Just wanted to share with the OP that I'm going through the same thing. Chris