Terrible road noise / cabin noise in my new 2016 2500 HD

Pharmvet · December 6, 2015

Just bought 2016 GMC 2500 HD crew cab long bed 4x4 WT (vinyl floor) truck. I'm sick to my stomach because of the terrible road noise I'm experiencing. Can't pinpoint yet wether it is coming from tires, engine, or wind. Seems to come straight at the driver through the firewall.

1) anyone else experience this?

2) what is most likely cause?

3) what can I do to fix this?

I'm already dreading long road trips?

Valleypatroll · December 6, 2015

Mine is almost silent. 6.0 Ltd crew cab

avalonandl · December 6, 2015

Unfortunately the WT is the lowest model hence the least sound deadening. Try some Dynamat if you have to.

SMiller · December 6, 2015

Unfortunately the WT is the lowest model hence the least sound deadening. Try some Dynamat if you have to.

Zero difference.

Go to the dealer and drive a couple other trucks to compare.

Pharmvet · December 7, 2015

Thanks so much for your replies. I'm losing sleep over this because this new truck is replacing a 2001 Chevy just like it (2500 HD Crew cab, long bed, 4x4 vinyl floor) in addition, I have an identical 2005 at my business. I want to think that I'm just imagining things, but the sound coming through the firewall just fills up my ears while driving. It's definitely worse than my other 2 much older trucks. It sounds to me that this sound is coming from the contact of the tire on the road (drivers side tire) does not seem to change with engine RPM. I suppose I cannot rule out exhaust problem. It is a low pitch roar. I'm open to any and all suggestions. I'm fearful that the dealership will not hear it like I do, or will not have a fix for it if they do.

Valleypatroll · December 7, 2015

What tires are on it?

Pharmvet · December 7, 2015

Firestone Transforce HT

newdude · December 12, 2015

WT trucks lack the sound deadening of the LT and up trucks. Take it in, go back and drive a couple other trucks on the lot as well for comparison.

avalonandl · December 13, 2015

Firestone Transforce HT

My experience is those are noisy tires.

Shawn T · December 14, 2015

Welcome to the club, mine is an SLT and loud as all hell. They have thrown everything from hub assemblies to rotation and balance. My just happened overnight and I'm ready to flip. My 06 was a ton quieter. It resonates from the front left wheel well area.

George C · December 14, 2015

Same here on my SLT.

I thought I was hearing things, but there is something going on in the left front wheel well area.

therink · December 15, 2015

My Denali 3500HD is the quietest truck I have ever been in. Big improvement over my 2012 Silverado LTZ 3500HD. There was some serious sound deadening engineering that went into the 2015+ HDs including the fabric wheel well liners. I'm pretty sure the Denali has the same deadening material as the SLT.

What wheel well liners does the WT have? I'm pretty certain that carpeted floors makes a difference.