2015 YUKON NOISE IN CABIN

The Zip · July 1, 2016

I am curious, what about your truck, how is it getting better?

My transmission shift changes have gotten longer between shifts. Wrong thread to have a conversation about it, I'll send you a PM.

Edited July 1, 2016 by The Zip

boazEarl8 · July 1, 2016

Since you mentioned the roof bow "fix"

Think 2 people here had it done only to have the bows come undone shortly thereafter

More recent posters have reported that dealers now say they are waiting for a solution from GM, so seems like GM "pulled" the roof bow repair and (hopefully) are trying to find a permanent solution

cltsig · July 1, 2016

If some people are more sensitive than others to these issues, I'm curious if those who've noticed it have ever driven in one that doesn't do it? I drove probably 10 Tahoes and Yukons before I bought the one I own, which is the only one that didn't exhibit the really obnoxious noises. It still booms (flick a woofer) at low speed but that seems inherit in all of them.

Edited July 1, 2016 by cltsig

boazEarl8 · July 1, 2016

If some people are more sensitive than others to these issues, I'm curious if those who've noticed it have ever driven in one that doesn't do it? I drove probably 10 Tahoes and Yukons before I bought the one I own, which is the only one that didn't exhibit the really obnoxious noises. It still booms (flick a woofer) at low speed but that seems inherit in all of them.

I'm still trying

I test drove around 10 before getting mine, same thing found the one where booming was the least

I've now been in about 30-40 between the 6 variants, and I have felt the boom in every single one

FogDucker · July 1, 2016

If some people are more sensitive than others to these issues, I'm curious if those who've noticed it have ever driven in one that doesn't do it? I drove probably 10 Tahoes and Yukons before I bought the one I own, which is the only one that didn't exhibit the really obnoxious noises. It still booms (flick a woofer) at low speed but that seems inherit in all of them.

6 dampers on my exhaust fixed the 'flick a woofer' booming at low speeds.

Cl Houn · July 1, 2016

6 dampers on my exhaust fixed the 'flick a woofer' booming at low speeds.

Did they replace 6 dampers or add

FogDucker · July 1, 2016

Admittedly, I haven't spent too much time under the truck, but I don't believe our trucks have any exhaust dampers from the factory. 6 dampers were added to mine and the low speed booming over gravel roads, snow covered roads and other small bumps is gone. No part numbers were provided on my invoice.

Buffeting was fixed by getting wheels/tires under 15lbs RFB.

Vibrating was fixed with a rear-axle replacement. Mine was mild compared to some of the videos from our pickup cousins.

I just rolled over 30,000km [~18,000 miles] and really enjoy the Yukon. It took some effort to get this point, but it was worth it.

cltsig · July 1, 2016

6 dampers on my exhaust fixed the 'flick a woofer' booming at low speeds.

I saw your earlier post but couldn't quite make out the dampers. Was this something the stealership whipped up? Could it be DIY? I'd love to eliminate the booming. I think the first step is to rid myself of those made-from-stone Continental tires.

Edited July 1, 2016 by cltsig

Cl Houn · July 2, 2016

6 dampers on my exhaust fixed the 'flick a woofer' booming at low speeds.

One Saturday please take a pic

John Dell · July 5, 2016

Admittedly, I haven't spent too much time under the truck, but I don't believe our trucks have any exhaust dampers from the factory. 6 dampers were added to mine and the low speed booming over gravel roads, snow covered roads and other small bumps is gone. No part numbers were provided on my invoice.

Buffeting was fixed by getting wheels/tires under 15lbs RFB.

Vibrating was fixed with a rear-axle replacement. Mine was mild compared to some of the videos from our pickup cousins.

I just rolled over 30,000km [~18,000 miles] and really enjoy the Yukon. It took some effort to get this point, but it was worth it.

Are you saying the pick up trucks have these problems? I was going to give up on the Yukon xl and go with a 2500 HD. Do they also have a lot of the same problems? thanks.

TOBTEK · July 5, 2016

Very interested in hearing more about these 6 exhaust dampeners. Any more info and or pictures? Where was the dealer that did this?

This last week was out in the middle of nowhere in Arizona by Kingman. Running 80-90 mph. The truck has a BAD vibration at this speed that I've never noticed at normal 60-70 mph. Has to be something to the Buffeting on the freeway.

I'm at my wits end. Almost ready to spend stupid money for a out dated 2016 Landcruiser. Just to get rid of all these cabin sounds.

Edited July 5, 2016 by TOBTEK

FogDucker · July 5, 2016

Very interested in hearing more about these 6 exhaust dampeners. Any more info and or pictures? Where was the dealer that did this?

This last week was out in the middle of nowhere in Arizona by Kingman. Running 80-90 mph. The truck has a BAD vibration at this speed that I've never noticed at normal 60-70 mph. Has to be something to the Buffeting on the freeway.

I'm at my wits end. Almost ready to spend stupid money for a out dated 2016 Landcruiser. Just to get rid of all these cabin sounds.

The GM field engineer installed them at my dealership, just outside Toronto. Other than "install 6 exhaust dampers", there are no other details or part numbers on my invoice. I'll try to snap some pictures, though I don't have access to a lift and my Yukon is out of town for a few days.

To be clear, the dampers fixed the "booming" noise experienced when driving slowly over gravel or snow roads and other bumps. I once believed that "booming" was related to the "buffeting", but it wasn't, at least in my case.

booming: fixed by adding 6 exhaust dampers

buffeting: fixed by getting each tire under 15 lbs RF [i did this twice; factory Conti's and my snow duty ATs]

vibrating: fixed with a rear axle replacement

The Yukon has been super smooth, right up to 100mph ever since the work was completed in March.

@John: I believe all these issues are specific to the 1/2 ton trucks only. This is based on reading nearly every discussion on the matter and the survey results that I've been compiling. I'd triple check before making a move.

TOBTEK · July 5, 2016

I've always agreed the booming and buffeting are two separate issues. I've been dealing with this MESS since Sept 2014.

Like to fix this Escalade for its the best looking SUV available IMPO, but looking for a suitable replacement asap. The 2017 Landcruiser is going to be even uglier then it already is the infinity is terrible, rover isn't the answer for reliability concerns.

Wish GM would just fix this problem so we could enjoy the vehicles we paid good money in good faith for.

Edited July 5, 2016 by TOBTEK

Del Cee · July 6, 2016

The GM field engineer installed them at my dealership, just outside Toronto. Other than "install 6 exhaust dampers", there are no other details or part numbers on my invoice. I'll try to snap some pictures, though I don't have access to a lift and my Yukon is out of town for a few days.

To be clear, the dampers fixed the "booming" noise experienced when driving slowly over gravel or snow roads and other bumps. I once believed that "booming" was related to the "buffeting", but it wasn't, at least in my case.

booming: fixed by adding 6 exhaust dampers

buffeting: fixed by getting each tire under 15 lbs RF [i did this twice; factory Conti's and my snow duty ATs]

vibrating: fixed with a rear axle replacement

The Yukon has been super smooth, right up to 100mph ever since the work was completed in March.

@John: I believe all these issues are specific to the 1/2 ton trucks only. This is based on reading nearly every discussion on the matter and the survey results that I've been compiling. I'd triple check before making a move.

If you have the invoice I'd like to see the part number for the rear axle or the dealer you used maybe they can guide my dealer on what to do Edited July 7, 2016 by Lift

FogDucker · July 8, 2016

If you have the invoice I'd like to see the part number for the rear axle or the dealer you used maybe they can guide my dealer on what to do

QTY FP-NUMBER DESCRIPTION

1 23360970 AXLE 053860

It was shipped in a wooden crate - I saw it on the shop floor when I dropped my Yukon off. Looking at the work order, I've put on just over 15,000km since it was installed.