Willyone

I'm not buy'n the body mount thing at all, or the frame thing either. I guess new & improved mounts could help in some cases. But I believe back in the day cabs and beds were just bolted to the frame? I've been driving GM 1/2 & 3/4 ton 4x4s for 35 years or more and never had a vibration problem like what I and allot of others here have now. At least nothing that a tire/wheel balance wouldn't cure. I'm pretty sure it's drive train related. My '16 Z71 goes back to the dealer on 10/25 which will be it's 2nd vibe visit. Of course I'm hoping they find/fix the issue, but I'm not overly optimistic. I'm think'n on this one, Murphy's law has a hold on my Z, and me. But I will post any positive results if there are any.

Waiting for someone else to do it 1st so I can see how it works ;o)

Yeah, looks ok...good...whatever...to some, but kind of a goofy design. My driveway has a slight downward slope, and I like to back the truck into the driveway and might get a small amount of water that holds on. If I level the front end no doubt I'll have a bird bath. Humph... Edit in;;; Think I'll just drill a couple of drain holes in the hood. Good idea?

slopra said... "Let's keep those brain juices flowing and figure out these vibration issues, at the end of the day there is a logical and scientific explanation, we just have to find it! The ideas I bring up may sound far fetched and are historically rare, but the logic is valid. I almost never speak off the top of my head in these posts and verify it all on the spot as I'm writing. Also, I think we're well past sticking with orthodox solutions/troubleshooting!​" ​I agree with you. I'm not an engineer or mechanic, but am somewhat mechanically inclined, and do generally understand the physical aspects of things, and generally understand something once it is explained to me. That said, and this is just is totally a shot in the dark, for some members here tire and or wheel replacement has worked. For some, such as 07softail drive shaft balancing has worked. But for many if not most who have had the tires/wheels and or driveshaft balanced or replaced, the vibe is still there. Couple of weeks ago the dealer man told me he test drove the truck and felt the vibration. Said he/they checked the tire balance, suspension, steering, drive train, and all was ok. Well, it is not ok. 10/11 when I drove the truck there was little to no vibes at all. Truck was not driven yesterday 10/12. I drove truck today to an appointment and after leaving the driveway I got a real and very noticeable vibe at 45 mph...worst ever in fact. 4 miles to the highway and at 74 mph the vibration started and stayed up to 85ish mph. So, the vibe has been present every time I've driven the truck, except for one time 11/11....weird. Guys here have replaced hubs, rotors, cv's, driveshafts, rear end parts, fk'ed with springs and the u-bolts, exhaust, and unfortuneatly I don't recall reading a whole lot'a success stories, although I have read a few. I think about the only things that guys here have not yet replaced are transmissions and tq converters. And I'm wondering if one of those, or both, might be the main issue. As I mentioned in a previous post, I'm guessing GM knows what the main problem/s is, or are, and they're avoiding addressing it. Just a crazy thought....

I mentioned before, either in this thread or another "shake" thread, I believe that by now GM would have to know what the problem is, or problems are, that cause the vibrations in these trucks. I'm thinking corrections to the vibes is either expensive, involved, or a combo of both. And GM is just dancing around the issues hoping they can avoid having to fork out the $$ for the repairs. Could I be wrong?? Sure, but ....

Huge congrats 07Softail....from a '12 Road King guy LOL. I took mine down the highway yesterday morning and little to no vibration. Weird...got up to around 85 mph and nuth'n. I have no idea why as the vibe is always there from about 74 mph and up. It was about 52 degrees outside so maybe due to cooler temps?? What a bunch'a bullshidt.

Same here. There area few minor mods I'd like to do to my '16 Z71 but with the vibration issue, I don't wanna dump any $$ into it until, or if, the issue is resolved. Hell I didn't need to spend $44K on a fk'n vibrator when I could'a had one for $9.95 from Adam & Eve LOL.

My wife bought a new Toyota Corolla in 2010. I busted her chops, laughed, and told her she had to park it behind the garage so no one would see it. Kidding of course, well, mostly LOL. Well, her car has never seen a dealer or repair shop since she bought it home except for oil changes and a set of tires. Crow doesn't taste good at all.

I don't see why what may well be the truth, would get you the hammer. I was supposed to deliver my '16 vibrator to the dealer tomorrow AM (visit no. 2). Spoke with the service dept. a few minutes ago and they don't have a loner available for tomorrow. I told the guy I'd be willing/glad to take any POS they have as long as it will get me thru the day. Again...nothing available. WTF, they have hundreds of new & used vehicles there!! Oh well, next week I'm told. Frustrated?... naw.....

AFM .... What exactly is AFM? I've seen it mentioned a few times but don't know what it is, or means. Sorry, still a newb I guess LOL Thanks!! EDIT;;; Never mind I googled it ... Active Fuel Management. Thank God for Google!!

I'm new to the forum but not new to GM 4x4 1/2 tons. I've been driving them since the late 70s. My '16 Z71 is truck number 7, if I remember right. Before my current Silverado I had a '07 Sierra SLE ll. I recently sold it with 130K miles on the clock. Got rid of it due to bad rust issues. Regardless of the rust, my '07 GMC went down the road and highways far better than my new '16 Chevy. In fact I never had a vibe issue with any of my previous trucks. I had my '07 Sierra for 9 years and now wish I didn't sell it. I also wish to hell I had done some research on the new-newer GMs before pulling the trigger on this '16. But after +,-40 years of having decent GM trucks I guess I didn't think it would be necessary....MY BAD. Sorry---Rant Over LOL All that said... with apparently so many trucks having the same or similar issues, I'd guess that by now, GM knows what the cause is, or causes are. And it may be they're just prolonging the expense of a recall. But seems a recall of sorts would be in the GM future and the cost to them wouldn't be cheap.

Question... is there a bulletin from GM advising of the vibration problem? I've read thru much of the thread and haven't seen if there is one or not. Sorry, I might'a missed it.

When I 1st start off in the morning, or whenever, my '16 Z71 gets a vibe or something, at around 45. Feels like it might be a "flat spot" in a tire or maybe two? I'm not sure. Anyways it seems to go away after driving a couple of miles. The 70+ mph vibration is always there...pisses me right off.

Hi everyone.... newb here, with the vibrating problem, starts about 72-74 mph and continues up to +80. Truck has a little over 800 miles on it. Took my '16 Z71 ext. cab into the dealer yesterday, hung around for 2 hours while they did their thing. Man behind the counter comes out and told me they test drove it and did feel the vibe. Said they checked tire balance, steering, suspension, yada, and all is good. Said they adjusted tire pressure on all 4 to 35 lbs. Told me to take it home and call if there's a problem. So I'm think'n... IF there's a problem, wtf?!? Anyways, I took the scenic route home making it a point to get in about 15 miles of highway. As I fully expected the vibe was still there, starting at low 70s as usual. So, when I got home I called them to let them know tire pressure adjustment didn't do the trick LOL. Service guy repeated what they had checked, and/but was nice about it. I also nicely responded letting him know and saying, it's a new truck and it should not vibrate and we/they gotta fix it. Service guy said to bring it in Wed of next week, and leave it for the day. Granted, it's early in the game, but I don't have a real warm fuzzy feeling about this vibration issue. I'll report back as the saga continues.