2015 YUKON NOISE IN CABIN

The Zip · March 20, 2016

But, having had several GM vehicles over the past thirty years and had vehicles with both dimensions I have learned that 20's are the way to go whether talking ride, wear, cost, you name it.

Yeah, same here, you're on point with this. I would think though as far as ride, if a manufacturer provided a 22 or more wheel for a truck, that size should have been tested for effectiveness and compensated to provide for a good ride? Don't seem to be the case with the GM truck line from PU to SUV, 22 inch wheels and larger may be aggravating some of the other issues going on with the truck line.

sh00ter · March 21, 2016

I've drive 4 different Denali XLs...all 4 wheel drive. Three of them had 22" tires & one had 20". All 4 of them had the buffeting & booming issue. Apparently, the size of the tires doesn't have any impact on the issue. The one with 20" tires was one I had special ordered but didn't take it because of the problem. I'm thinking about getting a Mercedez 450 GL instead.

Willyspu · March 21, 2016

Yeah, same here, you're on point with this. I would think though as far as ride, if a manufacturer provided a 22 or more wheel for a truck, that size should have been tested for effectiveness and compensated to provide for a good ride? Don't seem to be the case with the GM truck line from PU to SUV, 22 inch wheels and larger may be aggravating some of the other issues going on with the truck line.

As I see it the larger wheel size is really to keep up with current fashion. Big wheels with rubber band thin tires are in and that is what sells. And they ride like crap.

While the smaller and stiffer tire side walls help reduce roll in a sports car they are far from forgiving in ride quality. They just cannot absorb bumps and pot holes as well as tires with more sidewall.

If the overall diameter of the tire is the same (which they are on our vehicles) a 20" tire has more sidewall then a 22" and an 18" has more sidewall then a 20" wheel. The added sidewall material increases the "suspension" a tire can provide at the cost of high speed turning performance. I would not call our vehicles high speed performance vehicles so why use that tire and wheel combo?

I ordered my Suburban from the factory so I could get just the bells and whistles I wanted, and I ordered 18" wheels because the ride is superior to 20" or 22"'s. When I am making my 600 mile commute from CA to OR, I could careless what my tire/wheel combo looks like, I enjoy a comfortable ride.

Snoringbear · March 22, 2016

Willyspu, no argument here. Guess 18" wheels have to be special ordered for typical 1500's these days? I haven't seen 18" wheels on a GM dealer lot on anything but serious work trucks in years and they had heavy duty 6 or 8 ply tires which would ride rough as a cobb. But, what you did was smart thinking for sure.

Btw, noticed in your member description "1956 Willys Wagon". My first car when in high school was a 1952 Willys Wagon. Mine was two wheel drive, three on tree with overdrive. with 6 cyl L head engine. Well, it wasn't a true L head; intake valves were overhead valve pushrod and exhaust valves were L head. Don't think I've ever seen this configuration since. Anyway, had a lot of good times with that vehicle

Chris M. · March 23, 2016

Willyspu, no argument here. Guess 18" wheels have to be special ordered for typical 1500's these days? I haven't seen 18" wheels on a GM dealer lot on anything but serious work trucks in years and they had heavy duty 6 or 8 ply tires which would ride rough as a cobb. But, what you did was smart thinking for sure.

My 2016 Tahoe has 18s, had them as it sat on the lot. I just hit 1000 miles and haven't had any of the problems described in the thread. I love it.

ateam_burb · March 23, 2016

Hello All. Can someone who has had their vehicle recently serviced for the buffeting either post or PM me the latest service bulletin number their dealer is working off?

ajs800 · March 28, 2016

I had the 20" Denali machine finish wheels and new Michelin Premier LTX tires installed last week and will say 99% of our buffeting issues are gone. I really wanted to stick with the 22s but didn't want to risk it. Even though it seems as though our roof bows may be detached, I'm not going to pursue having the roof TSB done at this time. Leaving for a 2,000 mile trip later this week and will really be able to test things out.

cltsig · March 30, 2016

A new story on the vibration/buffeting issue, but mostly focused on pickups with vibrations. Any news is good.

http://www.autoguide.com/auto-news/2016/03/the-mysterious-chevy-shake-is-affecting-pickup-trucks-now-too.html

thirdsuburban · March 31, 2016

This is so ridiculous. GM refuses to admit there's a problem.

www.youtube.com/watch?v=51iaMAbLQoY

ajs800 · April 1, 2016

Our yukon has the "shake" problem and is exactly how it is describe. The shake will be my new fix as I think I've eliminated 99% of the buffeting/pressure issue. Four different sets of wheels and tires later.

However, outside of the shake, i can't get over how rough these trucks ride (currently on a 1000k+ mile road trip) ... Very harsh and jerky jittery like. I dropped down to 20" wheels and still not satisfied with ride...almost like there's no suspension...hard as a rock where every bump is felt. I don't get it.

Edited April 1, 2016 by ajs800

Eric cova · April 1, 2016

i think GM made the new cars in MacDonald . i hate my Yukon so bad so i use the other car which i don't like too .

ateam_burb · April 1, 2016

Our yukon has the "shake" problem and is exactly how it is describe. The shake will be my new fix as I think I've eliminated 99% of the buffeting/pressure issue. Four different sets of wheels and tires later.

However, outside of the shake, i can't get over how rough these trucks ride (currently on a 1000k+ mile road trip) ... Very harsh and jerky jittery like. I dropped down to 20" wheels and still not satisfied with ride...almost like there's no suspension...hard as a rock where every bump is felt. I don't get it.

ajs, there is a TSB for the rough ride if equipped with the magnetic ride suspension. My Suburban LTZ had the same issue and following the TSB my dealer replaced some of the suspension components (shocks and struts I think). It made a significant difference in the harshness over bumps. Yes, the feel is more disconnected from the road but it's a land yacht, not a sports car, so it works for me. Mine is a 2015i, and I was told the updated parts are standard on the 2016 models.

cltsig · April 2, 2016

Ateam_burb: Any idea what the TSB is? My 2016 Denali rides like a potato wagon, stiffer than any car I've ever owned or driven in 30 years of driving.

Weeves · April 2, 2016

This is so ridiculous. GM refuses to admit there's a problem.

www.youtube.com/watch?v=51iaMAbLQoY

Wow! I knew there was vibration/buffeting problem but I didn't think it was that severe. Makes me sick to my stomach thinking people drop hard earned money only to have issues like that.