Jump to content

Noise in cabin or am I going crazy?

Pyrojodge
 Share

Recommended Posts

fish_guru Enthusiast

fish_guru

Posted
Posted (edited)

Thanks for the info.  

 

I did see that thread yesterday in doing research. The '19s are so new there is little if any info on them yet so I was looking at the previous gen trucks. 

 

I don't plan on pulling any fuse having to do with the crankshaft nor am I cutting any wires.  I'll let the dealer handle it. 

 

And yes,  that rpm range is when I usually hear the noise. 

Edited by fish_guru
More info.
  • Replies 102
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

Bailey’s 6.2
Bailey’s 6.2

Ok the whistle is gone !!! They have resolved the issue with part #84626475 Hose 3.120 Y  Its a vent hose on the gas tank that was to small. It collapses upon itself and whistled. 

bfrank02
bfrank02

I am not sure if this is the same but I just picked up my Trail Boss. No noise when test driving but the next day in the morning. I noticed it from the left side of the dash towards the 4x4 controls b

Bailey’s 6.2
Bailey’s 6.2

Update the dealer just called me they found the problem late last night. It’s a emissions valve!! GM aperantly knows about it and had not told the local dealers yet. They have ordered the replacement

SS502 Senior Enthusiast

SS502

Posted
Posted
9 minutes ago, fish_guru said:

Thanks for the info.  

 

I did see that thread yesterday in doing research. The '19s are so new there is little if any info on them yet so I was looking at the previous gen trucks. 

 

I don't plan on pulling any fuse having to do with the crankshaft nor am I cutting any wires.  I'll let the dealer handle it. 

 

And yes,  that rpm range is when I usually hear the noise. 

I don't blame you! On the 2018, that wire is just a replicator signal wire and doesn't do anything but transfer a signal to the ANC system, I wouldn't be cutting anything on a 2019! I only did it after many other guinea pigs found the "fix", LOL. I really was adding it to show that the ANC (at least in ours) uses more than the Infotainment to work.

oldmann Senior Enthusiast

oldmann

Posted
Posted

Is it the heater blower?  Mine (2013) has made a noise since the day I bought it intermittently.  below the dash right side.

smit303 Enthusiast

smit303

Posted
Posted

I've got it too. Sounds like an ear test tone. Very high frequency. Comes and goes at different speeds. Not sure if it increases with acceleration. Very hard to get a  handle on it.

Sierra Jon Enthusiast

Sierra Jon

Posted
Posted

This sounds very similar to the high pitched squeak/sound that the K2 (2014-2018) trucks have. There is a lot of info on this over in the K2 forum. I believe it was a 4X4 module under the dash. There was no solution to my knowledge but some owners insulated the module with sound dampening material or foam to mask the source of the sound.

The sound only happens when in 4AUTO so if your sound still happens in 2WD then it's a different sound.

ChaseM Enthusiast

ChaseM

Posted
Posted
3 minutes ago, Sierra Jon said:

This sounds very similar to the high pitched squeak/sound that the K2 (2014-2018) trucks have. There is a lot of info on this over in the K2 forum. I believe it was a 4X4 module under the dash. There was no solution to my knowledge but some owners insulated the module with sound dampening material or foam to mask the source of the sound.

The sound only happens when in 4AUTO so if your sound still happens in 2WD then it's a different sound.

Mine is present in 4Auto and 2WD. It sounds like it’s coming from the back drivers side of the cab. So I don’t think it’s that. 

ChaseM Enthusiast

ChaseM

Posted
Posted

I have another thought on this. I'm sort of thinking its the Fuel Pump in the tank. If you stand outside the truck and hit the unlock button on the key fob you should hear it kick on. Can someone that hears this in the cab do this and see if it sound like a similar noise?

  • 2 weeks later...
Pyrojodge Enthusiast

Pyrojodge

Posted
  • Author
Posted

Well little update,  The dealer was not really any help.  The only thing coming from GM is some type of noise from the PCV that engineering is working on.  I swear that this sound is coming from the ANC system.  It is very annoying and would like a fix if anyone has one.  It makes me not want to drive the vehicle.

bowtie2007 Enthusiast

bowtie2007

Posted
Posted

I'll join the club. I notice it mainly during light throttle. It stops if i accelerate faster or let off the pedal. I've only driven it in 2wd. Maybe it's when cylinders are deactivating?

Sent from my SM-G892A using Tapatalk

SS502 Senior Enthusiast

SS502

Posted
Posted (edited)
1 hour ago, Pyrojodge said:

Well little update,  The dealer was not really any help.  The only thing coming from GM is some type of noise from the PCV that engineering is working on.  I swear that this sound is coming from the ANC system.  It is very annoying and would like a fix if anyone has one.  It makes me not want to drive the vehicle.

Just a thought...try temporarily putting a piece of tape over the interior microphones, they (at least in the 18) work in conjunction with the crankshaft replicator signal input for the ANC. See if there is any difference with the microphones covered. On mine there is rear microphone too.

Edited by SS502
SS502 Senior Enthusiast

SS502

Posted
Posted
On ‎12‎/‎10‎/‎2018 at 12:29 PM, SS502 said:

Just a thought...try temporarily putting a piece of tape over the interior microphones, they (at least in the 18) work in conjunction with the crankshaft replicator signal input for the ANC. See if there is any difference with the microphones covered. On mine there is rear microphone too.

I posted this over a week ago and it seems nobody has tried it yet or if they did decided not to post any results. IF it did help/change/eliminate then let others know...IF it did nothing let others know! Not much worse than a strange noise, especially if you're alone and can't try to isolate it. If the taped over microphones have no effect, I doubt it is the ANC system. I am interested in the 2019...I have the 2018 but my girlfriend is looking to UPGRADE her Furd :)

bfrank02 Enthusiast

bfrank02

Posted
Posted

I am not sure if this is the same but I just picked up my Trail Boss. No noise when test driving but the next day in the morning. I noticed it from the left side of the dash towards the 4x4 controls but too high pitched to isolate area. Tried to ignore but become more irritating with time. I did notice it would change pitch when changing throttle at highway speed. Tried to ignore it but then I though might be the AC/Heater fan or design of the venting (sharp angle or leak/gap). Turned off the AC/Heater and it stopped. Turned back on and it came back. I closed the left vent and the pitch stopped. Switched to lower vents - no noise. Switched to lower and dash - no noise. Switched back to dash and it came back. I found by adjusting all four dash vents I could position them just so the noise never came back. 

 

Might not be the same as you guys but I am convinced my issue is fan, sharp angle in HVAC path or a leak/gap. Only had it for a day so I will keep playing with it to validate this theory and to better isolate my root cause. 

 

It would help if others that have this problem tried this test and post comments-

 

1) Fan on (AC or Heat)

2) Drive at high way speed

3) Hear noise

4) Close left driver dash vent or switch to lower vents

 

Any change?

 

  • Like 1
  • Thanks 1
Jason Gullotta Enthusiast

Jason Gullotta

Posted
Posted
17 hours ago, bfrank02 said:

I am not sure if this is the same but I just picked up my Trail Boss. No noise when test driving but the next day in the morning. I noticed it from the left side of the dash towards the 4x4 controls but too high pitched to isolate area. Tried to ignore but become more irritating with time. I did notice it would change pitch when changing throttle at highway speed. Tried to ignore it but then I though might be the AC/Heater fan or design of the venting (sharp angle or leak/gap). Turned off the AC/Heater and it stopped. Turned back on and it came back. I closed the left vent and the pitch stopped. Switched to lower vents - no noise. Switched to lower and dash - no noise. Switched back to dash and it came back. I found by adjusting all four dash vents I could position them just so the noise never came back. 

 

Might not be the same as you guys but I am convinced my issue is fan, sharp angle in HVAC path or a leak/gap. Only had it for a day so I will keep playing with it to validate this theory and to better isolate my root cause. 

 

It would help if others that have this problem tried this test and post comments-

 

1) Fan on (AC or Heat)

2) Drive at high way speed

3) Hear noise

4) Close left driver dash vent or switch to lower vents

 

Any change?

 

Great suggestions!

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

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,760
    Total Members
    8,960
    Most Online
    MASONV88888888
    Newest Member
    MASONV88888888
    Joined

  • Who's Online   2 Members, 0 Anonymous, 1,611 Guests (See full list)

  • Latest Articles

  • Posts

    • MASONV88888888
      Another 6.2L engine failure!

      By MASONV88888888 · Posted

      My 2025 Silverado 1500 had to receive a brand-new engine (long block) under warranty last month at only around 16,500 miles. Before the replacement, the truck repeatedly displayed "Engine Oil Level Low" warnings, even though the Oil Life Monitor still showed around 50% remaining after about 6,000 miles since my last oil change. After seeing the warning several times, I checked the dipstick with the engine cold, and the oil level was completely normal. The next day, the message escalated to "Add Engine Oil." At first, I assumed it was just a faulty oil level sensor, so I brought the truck to the dealership. After inspecting the engine, they found internal cylinder wall scoring and ultimately replaced the entire long block under warranty. Before this happened, I was planning to install a 4-inch lift and suspension upgrade on my truck. After needing a new engine at just 16,500 miles, I honestly don't see the point anymore. I also contacted GM to ask whether my vehicle qualified for a buyback, but I was informed that it does not at this time. Anyway, this experience has left me with serious concerns about the long-term reliability of this engine. I sincerely hope NHTSA expands the current investigation or recall to include 2025 model and performs a thorough inspection of affected vehicles. My biggest concern is that these engines may fail shortly after the powertrain warranty expires. If GM truly stands behind this engine, then at the very least, please consider extending the powertrain warranty to 10 years for affected owners. That would go a long way toward restoring customer confidence.
    • Grumpy Bear
      OCI, not when but why?

      By Grumpy Bear · Posted

      Without exception but then I'm the odd duck, right? I know what goes into that test, how it is calculated and thus how to beat it. But EPA values are often not beaten by the general public and the government has in past years adjusted the means and methods to come to those values to more closely approximate "Joe Average".    The only real trick to beating that EPA average is don't drive like "Joe Average".    It's the same method you used to profit from "Economic Migration" and in doing so beat the 'stats'. But you, like me, are not "Joe Average".     The thing you don't seem to grasp is this "Purchasing Power Index" isn't forward looking. It doesn't predict what it going to be but looks backward and states what it was. They are not telling us what the THINK, they are telling us what they MEASURED. Example:    Wife says "I'm going to lose 40 pounds by Christmas". May she does, maybe she doesn't but the doctors office who weighed her when she made that statement and again at Christmas only REPORTS what the RESULT was. You and I can banter about what was possible and what aunt Tilly did till the cows come home but the result is the result. Arguing otherwise is.....irrational. That's all I'm saying. This isn't about:      What you are calling a 'Statistic' is a RESULT not a CALCUATION and as a result the RULE. Like gravity as a rule, it can not be broken. 
    • MASONV88888888
      Rattle in the rear!

      By MASONV88888888 · Posted

      Just wanted to say thank you for posting this. Years later, your thread is still helping Silverado owners.   I bought my 2025 Silverado 1500 in January 2025, and I've had what feels like the exact same rattle since day one. After reading your findings, I believe my truck has the same issue with the cable carrier contacting the rear sliding window. To be honest, I had pretty much given up on pursuing the issue. It wasn't until I recently drove another brand's pickup that I realized just how quiet their cabin was—and how noisy mine has been all along. On my truck, the rattle happens on almost any paved road, gets even worse on rougher pavement, and I can even hear it during braking and acceleration.   I actually referenced your thread when submitting my case to GM, hoping they'll recognize this as a recurring issue instead of treating it as an isolated incident. The reason I reached out to GM first is because my dealership told me they would need to keep the truck for at least two days just to diagnose the problem. I was concerned that even after two days, they still might not be able to identify the source of the rattle before giving the truck back to me. I had also asked a few dealerships about this issue during previous service visits, but none of them seemed to know what was causing it or had a solution. That's why I decided to contact GM directly first, hoping they might already have an official repair procedure or guidance for this issue.   I also hope GM eventually comes up with an official fix for this problem. I have a feeling there are many Silverado owners experiencing the same rattle, but most either choose to live with it or simply don't know what the cause is.   Really appreciate you taking the time to document your diagnosis. Your post is still making a difference years later.
    • Buckwild27
      Gas Prices

      By Buckwild27 · Posted

      I have 2 choices. 
    • Grumpy Bear
      Gas Prices

      By Grumpy Bear · Posted

      Do you have access to BP fuels? Some stations have Silver 91 E-0 priced the same as their 93 E-10.  There is a local Marathon with 90 alky free for $6 a gallon but I go down the road to BP for $5-ish. They also have a 100 E-0 but that stuff is $10 a pop. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...