Jump to content

Silverado versus Sierra cabin noise

GN2018
 Share

Recommended Posts

TNTSierra Senior Enthusiast

TNTSierra

Posted
Posted

Well when you look at the curb weight of each vehicle.  Similarly equipped. Here are the weights

 

Terrain AWD: 4049 lbs

Equinox AWD:3758lbs

 

Quite a bit difference.  I don’t think the salesman is off by much by claiming this!

 

Anyways, I just got back from another trip in my stepdads Sierra and it’s a big difference on interior sound compared to my Silverado. My next truck will be another Sierra after the refresh in 2023. I would have bought this 2020 Denali this past Wednesday if they would have gave me a deal but they wanted $11,500 difference.  Too much! 
 

https://www.billionauto.com/New-2020-GMC-Sierra1500-3GTU9FET4LG277733

 

Good luck with your decision. 

 

 

 

 

  • Replies 30
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

Jglew82
Jglew82

I test drove a ‘20 Silverado RST z71 3.0 for a week and ended up buying a ‘21 Sierra X31 SLT premium plus 3.0. My Sierra is noticeably quieter and smoother in my opinion.

GN2018
GN2018

I'm wondering if anyone has had the opportunity to drive both a Silverado and Sierra that could comment on the difference in the sound proofing in the Sierra versus the Silverado.  I used to drive Bui

lebag335
lebag335

I owned a ‘19 TB LT and it was very loud. I mostly attributed that to the tire noise. I upgraded to a ‘20 AT4 and the difference is night and day. My GMC is way quieter! Amazing difference. 

cltsig Enthusiast

cltsig

Posted
Posted

Don't forget higher trim levels have the Bose system that includes ANC (active noise cancellation).  That undoubtedly makes a difference.

  • Like 1
TNTSierra Senior Enthusiast

TNTSierra

Posted
Posted (edited)
On 12/27/2020 at 10:56 AM, 1Joshman said:

I just bought a new 2020 2500 diesel.  It had/has/ a rattle in the dash.  It is mostly intermittent but generally only at start up.   Annoying as all hell.   The sales team has tried to fix it and has helped but it still rattles sometimes?   Is there a material that could be applied for a fix to this issue?  The rattle is at the center of the console?   

So I got my truck back today and they fixed the rattle and they said “they had to relocate the transmission harness on top of trans to prevent it from rubbing on the firewall”!  He said they have had a few of these trucks with my issue. He also had to put some loctite on a couple center console bolts because they were a little loose and prevent them from coming out again.  I was very pleased with their service on my truck. Fixed all my issues, along with rear brake squeak. Truck is super quiet inside now. Hopefully this helps you if you or anyone else if you are having a rattle in the dash area. 

Edited by TNTSilverado
MTU Alum Enthusiast

MTU Alum

Posted
Posted
On 12/27/2020 at 5:59 PM, OlyMike said:

Maybe that explains why my RST has a slightly higher  (about 200lb) tow capacity then my bro-n-law SLT X31. The trucks have the same 3.0, drivetrain, bed and doors.

The towing difference is due to how SAE 2807 is calculated.  You must use EPA curb mass for vehicles under 8600 lb GVW.  GMC EPA curb mass is higher than Chevy.  EPA curb mass means you must include every option that has over 33% take rate.  GMC typically has to use a denali mass vs chevy using LT mass.  This is why the fuel economy and tow numbers are different between the brands.

 

The acoustic packages are the same between brands.  There are three levels of acoustics:  work truck/custom, LT, and lux.  This is why you will see things like hood blankets, rear wheel liners, and rear seat acoustics not on work trucks/custom.

 

#iworkforGM 

blckblt Enthusiast

blckblt

Posted
Posted
10 hours ago, TNTSilverado said:

So I got my truck back today and they fixed the rattle and they said “they had to relocate the transmission harness on top of trans to prevent it from rubbing on the firewall”!  He said they have had a few of these trucks with my issue. He also had to put some loctite on a couple center console bolts because they were a little loose and prevent them from coming out again.  I was very pleased with their service on my truck. Fixed all my issues, along with rear brake squeak. Truck is super quiet inside now. Hopefully this helps you if you or anyone else if you are having a rattle in the dash area. 

What did they do for the rear brake squeak?

TNTSierra Senior Enthusiast

TNTSierra

Posted
Posted
16 minutes ago, blckblt said:

What did they do for the rear brake squeak?

Replaced them with new pads 

Justin Vaughn Enthusiast

Justin Vaughn

Posted
Posted

THere is a LOT of sound deadening measures on my AT4...kevlar wheel liners, rubber shields around edges of hood, under the hood, front doors have to have something extra in them...I drive with no radio often and the noise is less than my wife's 4Runner and my old Tundra.

 

BlaineBug Enthusiast

BlaineBug

Posted
Posted
On 12/26/2020 at 7:01 PM, TNTSilverado said:

I have a 2019 high country and my step dad just bought a 2020 SLT Sierra and I can tel you without a doubt the Sierra is quieter. I also owned a 2015 Terrain and my grandfather has a 2015 equinox and my terrain was quieter. So when I bought my 2020 Acadia for my wife the sales man states the GMC put about 150 lbs more of sound deadening into the terrain compared to the equinox.

Id say from my experience the GMC is quieter. 

Salesmen say a lot of things that they are unfamiliar with, so beware.

  • Like 1
TNTSierra Senior Enthusiast

TNTSierra

Posted
Posted
3 hours ago, BlaineBug said:

Salesmen say a lot of things that they are unfamiliar with, so beware.

Oh I’m aware. I buy vehicles every 3 years and I listen to what they say, but take it as a grain of salt. But I know for a FACT that GMC vehicles that I’ve owned have been quieter than they’re Chevy counterparts. 
 

2015 Acadia quieter than moms Traverse

2015 Terrain quieter than grandfathers Equinox 

stepdads 2020 Sierra quieter than my 2019 High Country

 

So I do believe that GMC does use more sound deadening materials from my buying/driving experience

EricTheRed Enthusiast

EricTheRed

Posted
Posted

I have inside information from a reliable source that the difference is from the Chevy bow tie on the grille. The wind noise is huge.

BluegrassMotorsport Enthusiast

BluegrassMotorsport

Posted
Posted

I haven't noticed the difference between Silverado/Sierra, but I will say my T1 is noticeably louder on the highway than my K1 was. And my K1 had the Duratracs... 

  • 4 weeks later...
1Joshman Enthusiast

1Joshman

Posted
Posted
On 12/28/2020 at 9:51 PM, TNTSilverado said:

So I got my truck back today and they fixed the rattle and they said “they had to relocate the transmission harness on top of trans to prevent it from rubbing on the firewall”!  He said they have had a few of these trucks with my issue. He also had to put some loctite on a couple center console bolts because they were a little loose and prevent them from coming out again.  I was very pleased with their service on my truck. Fixed all my issues, along with rear brake squeak. Truck is super quiet inside now. Hopefully this helps you if you or anyone else if you are having a rattle in the dash area. 

Thank you~   Sorry for the slow reply   Ill talk to my dealership about this possibility.

  • Like 1
Dali555 Enthusiast

Dali555

Posted
Posted
On 12/28/2020 at 10:51 PM, TNTSilverado said:

So I got my truck back today and they fixed the rattle and they said “they had to relocate the transmission harness on top of trans to prevent it from rubbing on the firewall”!  He said they have had a few of these trucks with my issue. He also had to put some loctite on a couple center console bolts because they were a little loose and prevent them from coming out again.  I was very pleased with their service on my truck. Fixed all my issues, along with rear brake squeak. Truck is super quiet inside now. Hopefully this helps you if you or anyone else if you are having a rattle in the dash area. 

Rear brake squeak? Can you tell me more? I have a 2020 AT4 with about 14,500 on it and I've noticed that especially in the morning just coming to a stop my brakes are squeaking and that doesn't seem right to me. What did they do?

TNTSierra Senior Enthusiast

TNTSierra

Posted
Posted (edited)
7 hours ago, Dali555 said:

Rear brake squeak? Can you tell me more? I have a 2020 AT4 with about 14,500 on it and I've noticed that especially in the morning just coming to a stop my brakes are squeaking and that doesn't seem right to me. What did they do?

They put on new pads. Only helped for about 2 weeks. Was backing out of garage on Monday morning and they squeaked again. Only squeak 2 or 3 times when it’s really cold out and in reverse after being parked for few hours. It’s the pads and the way they are constructed I believe. Because the rotors look brand new still. I have almost 13k on truck. 

Edited by TNTSilverado

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • Z45
      Fluid Change Questions

      By Z45 · Posted

      I would be surprised if the diff's were not filled (with the cheapest gear lube) at the axle factory before being shipped to GM.  If you ever watched them building trucks they install the axles and all suspension parts with the frame upside down and then turn it over before its time to install the engine.     Too much gear lube in a axle can be worse than not enough especially with a lower quality GL where is get whipped up with entrained air (foam)  weakening its ability to lubricate.        
    • MORSNO
      Oil Consumption

      By MORSNO · Posted

      This is the 6.6 gasser section of the forum, you should either delete or modify your previous post as it is misleading for anyone looking for factual information on their 6.6 gas engine.
    • Atlas
      Wow I'm in a pickle. (Broke down truck) and a story.

      By Atlas · Posted

      Well....I've done my first intake gasket. Probably wrong, but...we'll see?   Ultra black on the china walls and 1/4" up onto the sides of the intake gaskets. Permatex High Tack (couldn't find Gaskachinch) on the head side of the intake gasket. I read wrong and it says you're supposed to put it on the mating surface of the head, not the gasket. Hoping it's like a PB&J sandwich where it doesn't matter what side the PB goes on so long as there's jelly. That crap is messy/sticky and I got a dab or two on the intake port openings, tried to wipe it off. Hopefully it won't be a big deal and will only aid in sealing.   Per instructions I left the intake (top side) of the gasket dry except for a light smear of RTV around the coolant ports. Wiggling the intake in there was a bear but I had help to free me of surrounding wiring/stuff but I was basically able to set it straight down lined up with the bolt holes.   I did not think to wait until the RTV skinned over but there probably was 5-10 minutes while it sat before installing the intake.   Bolts finger tight first. Then, followed the Chilton's manual pattern to snug them to 15 lb-ft.   Waited a little over an hour, and then did the final torque in sequence again to 35 lb-ft.   Yesterday I replaced the fuel pressure regulator and got my new "nut and bolt kit" (fuel lines) installed. Damn GM used security torx on the spider, which I don't have, so I got scammed at the local HW store for an off-brand security Torx bit set.   The new driver's door mirror arrived yesterday, so, there's a chance this thing could be running and road legal tomorrow? I don't want to get my hopes up.   This will be my first time stabbing a distributor, too. Although, lucky me, someone else marked the old distributor for removal previously, I did see that. (Someone's been here before!!). Engine is still at TDC so it *should* be just a matter of transferring the mark to the new dizzy and rotating it into place.
    • KARNUT
      2027 GMC Sierra: Official Discussion

      By KARNUT · Posted

      He has his dad’s newer truck he’s put away. He has several old cars he rotates between him and his family. I’ve seen a restored square body and a SS Chevy truck he’s sometimes drives. He did raffle off a new suburban recently. As much as he is watched if he drove new stuff as a rule we’d know it. It would be fine by me. I don’t care what people prefer. I got one more new one in me. I’d rather my wife get one. I can’t get her out of the Genesis. Don’t tell anyone. I want her to get an electric truck. I want to put a generator in the back. Just because. She hasn’t bit yet.
    • Atlas
      2027 GMC Sierra: Official Discussion

      By Atlas · Posted

      Yes, you must have seen my thread on the Blazer. HOT GARBAGE, but I love them anyway. I'm convinced every car guy has a soft sport for an S/T series somewheres. Probably even a Panther too, if I'm being an honest car guy. That doesn't mean they aren't junk. And they definitely don't get better with age. I sometimes play with old cars, but that's by choice. I don't rely on them and they aren't my everyday fleet.   Derek plays the common man on Youtube and that's no doubt where he started. Now he has Youtube money (and Motortrend, etc). You think his crews and his wife ride around in old beaters when they're chasing him and his wrecks across the country? No he's got newer and nicer stuff for that, you'll see glimpses of it in the footage.

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...