2015 YUKON NOISE IN CABIN

Cl Houn · April 25, 2016

Is it the tires cause when it's time to get a new set I don't think the tire shop gonna be switching up tires for free

FogDucker · April 25, 2016

Is it the tires cause when it's time to get a new set I don't think the tire shop gonna be switching up tires for free

Sure they will. I've done it twice now (summer & winter tires), eliminating the buffeting both times.

Before agreeing to buy them, tell them they need to have RF numbers less than 15. Better yet, buy them from a GM dealer who mandates those specifications.

These new trucks are sensitive. Had I not experienced it myself (twice), I wouldn't have believed it.

ajs800 · April 26, 2016

Yep. I ordered a new set of Michelin Premier LTX and after explaining to the shop the issues, they ordered 8 tires to make sure I had 4 that RF under 15lbs. Most vehicles would be fine with anything under 20lb RF but not these trucks. Prior to the new set, I had the orig 18", a used set of 22" and another new set of GY 20" tires. The buffeting was all over the place depending on the tires and was by far the worse with the 22" setup. However, the 22" tires were not new and may have been defective or had wear issues as they were already mounted to the 22 denali wheels when installed.

Del Cee · April 26, 2016

Sure they will. I've done it twice now (summer & winter tires), eliminating the buffeting both times.

Before agreeing to buy them, tell them they need to have RF numbers less than 15. Better yet, buy them from a GM dealer who mandates those specifications.

These new trucks are sensitive. Had I not experienced it myself (twice), I wouldn't have believed it.

So that's it. Ref load under 15. Do they have 22 with that rating. Has anyone tried

By the way this is Cl houn I don't know why this screen name comes up

Edited April 26, 2016 by Lift

sas06 · April 26, 2016

Friends,

I am coming back to this forum after a long time. The main problem of buffeting lies in the tires. Just replace them with a good quality soft tires, have them balanced properly and the major issues will be gone. However, in winter when the tires become hard some level of buffeting might still occur, that too in the morning when you start off. May be you need to replace tires a bit more often than with other cars too.

Looks like the wheel-base is very sensitive to tire conditions for these cars (suburban etc).

It is really an enjoyable car once major issue is gone.

FogDucker · April 26, 2016

+1 on sas06

@CI houn: I'm sure all manufacturers have different designs and tolerances, probably per model. The tire shop told me that 20lbs was the tolerance for LT tires. Unsure what that is for P-spec tires. I'm sure you can find a good set of 22". Just find a shop with a Hunter RF balancer, good stock and is willing to spend the time to get it right.

It took 6 Continentals to get them all under 13lbs. The buffeting ceased. I then mounted my BFG KO2s for winter duty which were balanced to 18lbs, 15lbs, 11lbs and 4lbs with the worst two on the rear. The buffeting returned. 2 hours and 2 tires at the top, they got them all to 12lbs, 10lbs, 10lbs and 8lbs. The buffeting ceased.

It is unusual that this new truck platform is so sensitive. I'm just happy that we now know how to minimize it.

ajs800 · April 28, 2016

They make the michelin Premier LTX as well as a few other brands in the 285/45/22 size. I was very close to keeping the denali 22s and ordering a set in the 22 size but figured it was best to drop down a size given all of the ride issues. If I knew the buffeting would be cured and only lose a little ride comfort I would stick with the 22s. I am not sure if there are any on here that fixed the buffeting with 22s after making sure all tires RF under 15lbs.

Cl Houn · April 28, 2016

What exactly does rf stand for

FogDucker · April 28, 2016

What exactly does rf stand for

Road Force, obtained from a Hunter Road Force balancing machine which not all dealerships or tire shops have or are trained on. They cost about $10K each.

Cl Houn · April 28, 2016

So is the " rf under 15 " a tire spec or balancing spec.

Is tgat something your looking for on the tire or balancing the tire

So is the " rf under 15 " a tire spec or balancing spec.

Is tgat something your looking for on the tire or balancing the tire

Cl Houn · April 28, 2016

So is the " rf under 15 " a tire spec or balancing spec.

Is tgat something your looking for on the tire or balancing the tire

ajs800 · April 29, 2016

It's a result of the tire when balancing. Tires will vary depending on manufacturing issues/variances.

http://www.motorweek.org/features/goss_garage/road_force_balancing

Edited April 29, 2016 by ajs800

Gatrnol · April 29, 2016

It's a result of the tire when balancing. Tires will vary depending on manufacturing issues/variances.

http://www.motorweek.org/features/goss_garage/road_force_balancing

Good link - thanks.

[email protected] · May 1, 2016

I have a 2015 Yukon XL with the cabin noise issue same as everyone else. Been to the dealer and they could not fix it. Dealer says GM is designing a new exhaust system or at least modifying the old one. Something about a baffle near the end of the exhaust system. Noise is terrible, worst around 35 to 45mph when it is in the 4 cylinder mode. If you put it in the towing mode which cause the rpm's to rise the noise goes away. Wife always buys the Yukon XL but I think this will be the last one. Especially since it is taking GM so long to fix it. A fix should have been figured out a long time ago, does not make sense.

Ozzii · May 2, 2016

Gm told me the same thing on the new exhaust. Its in production now and should be available by the end of June. My dealer has me first on the list to get mine replaced when the part comes in.