This was a very helpful video and so are the comments. I have a 2021 Silverado making the identical noise. Following on the comments, I took it to a mechanic and suggested the idler pulley was out. Turns out that’s exactly what it was. Thanks!
@gregmac2392 this is the same sound my 2020 Silverado just started making . Is this something that is covered under the chevy warranty ? Or about how much did it cost you to get it fixed ?
Holy crap, that's the EXACT sound mine is making! The pitch rises in time with acceleration! Wow! Thanks! So maybe it's more simple than I thought, I was scared it was the trani!❤ Update-- it was the trani🥺 BUT, I found a really great guy down in Houston to rebuild it, and it cost way less than I thought it would😊
There should be a recall on it or something this is ridiculous, new trucks needing replacement parts. This was a very helpful video and comments I greatly appreciate it.
Ive been watching this video and reading these comments for the last couple weeks looking for answers on my 2020 trail boss with 43k miles. Was having the same noise so i took it into the dealership to get everything looked at including the idler pulley and torque converter but where i live it has to sit at the dealership for 2 weeks before it even gets looked at so i went to pick it back up after a couple of days because i simply cannot be without a vehicle. Im the original owner so i still have the 560 warranty however i was sweating bullets because i had put a k&n intake on, so i went to go get it to put the stock one back on then take it back like a week later so i would not void the warranty. Turns out that the noise completely disappeared after i put the stock intake back on. It makes no sense to me how or why there should be sensors all over that tell me im getting either too much or not enough air. My advice is that if you have an aftermarket intake put the stock one back on first before you go drop any money on it.
100% idler pulley. Even tho you probably know that by now. 2021 Silverado 40k miles and idler pulley was going out. Had some people fooled with the supercharger sound.
The issue with my 2021 Silverado 5.3 engine with 15,600 miles , was a bad tensioner pulley and serpentine belt . There’s no whining now . But I’m still saying , those type of issues normally happens miles down the road . I’m glad it wasn’t more serious.
I’ve got that same sound coming from my 2021 chevy Silverado LT 5.3 engine 15,567 miles on it . It’s a lot louder at start up . Bought truck new, had liters replaced on drivers side of engine 3 months ago. Now this , it’s at the dealer right now , don’t know verdict yet. Martin , in Houston , Tx.
Yup had this same problem went under hood and shot some lube on idler pulley and noise changed drastically. So went to dealership and they replaced belt plus idler pulley and it is quite like a brand new truck. They know this is a problem!!!
I took my belt off and started the truck and it still makes the noise, come to find out these trucks had a problem with the vacuum pump and that’s where my whine noise was coming from. So if anyone is wondering I would pull your belt off and if the noise continues I would start looking at the vacuum pump.
For those who might care. I have a 2019 Chevy Silverado 1500 5.3 4x4 ltz. It was way to quite off the line for having an LS 5.3 so I cut the muffler and exhaust flap off and put a straight pipe in it's place it still comes out the passenger side behind the tire. IT SOUNDS AMAZING even with the automatic fuel management when it's in 4 cylinder mode its ok when I stomp on it or cold start. Its everything id expect and it sounds so aggressive!!!!!
Ive watched this video 50 times and been reading all the comments trying to get an idea of whats going on with mine. Im sure homie has got it fixed by now but i just got mine fixed with the same exact sound, it was a transmission fluid pump that had failed. Easy fix for the dealership. However if you’re reading this and you have the same issue i hope you are the original owner because mine would have been $4500 if i wasn’t under the original warranty. Dont go tearing apart your idler pulley or some shit like that. Anyway, as of october ‘23 as i write this chevy has been on strike for 2 months straight now so parts are extremely hard to get. Luckily the area i live has a huge inventory. Inflation has gotten fucked too and made parts expensive. If you have the same issue hopefully you have the 5,60 warranty or know a skilled mechanic cuz I already know i wouldn’t have dropped 4500 on that shit. On top of it all it was driving fine too with no check engine light.
This comment sounds the most correct to me. It sounds like power steering pumps used to sound when low on fluid. It is definitely a fluid pump sound. The only two fluid pumps on this truck are the oil pump and tranni fluid pump. My truck is making the same sound. 2 weeks after purchase. Does it also feel like it shifts down too early? Or like all the gears feel like 1st, as soon as you take foot off gas, the truck slows very quickly? Thanks all
Damm I have a 2020 gmc sierra 40K miles mine just started making a low whining noise when I accelerate not really bad this should be a recall for our vehicles
Same sound and same issue I changed belt and going to change idler pulley dealership has said it’s a common problem and people have been changing those two parts
I have a 2021 Tahoe, z71. 89k miles, idler pulley, and shredded belt. Solved noise. Only cost $250 because of friends and family discount from a friend at Dobbs.
I also have a 21 Silverado…. Same noise. Idler Pulley “berring” is your issue. It’s a warranty repair fix… for those whose vehicle is still covered by warranty. Best of luck.
. I discovered the buzzing vibration sound was coming from the fuel tank heat shield on the driveshaft side. I reached up to the top of the heat shield. I have a 2021 Chevy Silverado
Yep, me 2020 Chevy trailboss 5.3 just started making that noise a few days ago… I noticed it when music was off and was like wtf? It’s going in in a few days has 38k on the clock
I have a 2008 GMC Yukon just started making this noise this week feeling it’s idler pulley or belt maybe both I’ll update after I get it diagnosed I’ll keep y’all updated
I'm having this same noise and it's driving me nuts. In the past week I've replaced my idler and tensioner pulley, serp belt, stretch belt, water pump and thermostat and I'm running out of ideas of what it could be. Mine is a 13 silverado with 114k lifted (which has been a nightmare)
What you don’t like the hellcat sound? I just replaced mine in my 2021 just out of warranty due to mileage. Just over $100 for belt and idle pulley and used the zip tie belt install method.
Mine is a 21 Silverado . 36k doing the same thing. I said maybe it’s the idler pulley and all mechanics refuse to believe that. Mine goes in tomorrow too.
I have a ‘21 with a 6.2 and 43k miles and it’s whining like a bitch. And need to make a trip of about 350 miles and don’t think I’m going to take the chance. Going to dealer next week. What was your outcome? Idler ?
My guy please do a follow up video if you have the problem fixed. I NEED to know what’s the problem because my 04 is making the exact same noise. I can’t figure out what’s making the noise
@@aidanhaller5800 geez I been having bad luck with it lately. First a brake line went out. Then the brake master cylinder leaked brake fluid in the booster and sucked fluid into the engine. Replaced the brake booster and master cylinder and while bleeding brakes a front line blew out. Now this damn whining noise. Haven't even got to put the front brake line in yet 😡
@@bfro2018 idle pulley and belts had to be replaced. According to my mechanic at the dealership, “this is a common issue for all 2020-2021 GM model trucks.” The parts are under warranty and should be free of charge.
Sounds exactly like engine driven power steering pump noise but it’s not. Silverado has an electric power steering pump that does not change frequency with engine RPM
@@throwbacktailgaterso.c6317 they put me in a truck that had 7 miles and said see, its making the same noise. they said it was the turbo. BS (i have a 22 silverado 2.7l, this is my 2nd one because my other one was totaled 3 weeks after i got it and it was silent.)
yeah guys mine started today when first start it was loud so i check, my suspicion was the idler pulley taking it back to dealer tomorrow 34k miles should be under wrnty
Have same noise one 2020 with 6.2 I think it's something to do with intake cause it sounds like it's trying to suck air , wish I had a lift to look underneath
My 2021 rst with 31k mile’s started making this sound while driving back from south Texas to Michigan based on a little knowledge it has to be a pulley im taking it to the dealership tomorrow we’ll see what it is
@@chancewhite9641 youtube 2020 silverado serpentine belt life hack. Long story short. At least 4 zip ties. The crank shaft pulley. Once you have everything ready to go. You don't have to pull the belt too tight. Zip the belt to the crank shaft pulley. Start her up turn her off. All done
@@chancewhite9641 To get it off. You can cut it off. I took my idler pulley off on the top right. Pulling on the belt to release some tension. Came off no issue and no bind
my 2015 is doing something similar but not as loud , I just got the truck so I dont know if it is normal for a gmc to have some amount of engine whine like this or not, it sounds like the sounds a vehicle makes when the power steering pump is going bad or needs fluid but this truck only has 78,000 miles so I wouldn't think the power steering pump would be bad yet. it is under full warranty though, I guess I should just take it in! very annoying I have only had it for a week and already have found a few things that needed to be replaced/repaired.
Could be coming from the torque converter in the transmission, i got a 2014 sierra with 130k with a transmission that slips and my truck is starting to whistle on it, quite a few issues with the truck and only had it for a year. Not impressed with GMC
@@Chah18 oup if your transmission is slipping your gonna need new one or rebuilt soon. My 2015 Sierra transmission blew out the other week. Now it's fixed and rebuilt but something is hissing around JLT hose I got or around the water pump
@@tonysimpson6022 they said it was transmission, rebuilt the transmission and it still makes the noise.....but also now the transmission is not working right so I wonder if it is the torque converter . I do not know but it is expensive to find out so I will tell you when I find out so maybe save you some $ I am taking it back in the morning . it is very frustrating.
Did you ever get it figured out?? I have the same noise. Taking it in tomorrow to the dealership. I took off my pulsar lt and when I turned my truck on I have a check engine light now. Usually an idle pulley won’t cause the check engine light.
Same noise on my 2014 gmc 4X4, 156k miles, but the truck has to be moving forward, pushing the gas pedal and then it would get louder as I go faster. Once I let go of gas pedal and it would cruz on its own , noise would go away? Doesn't makes noise when truck is at stand still or idle. Today I switched my 4x4 nob from Auto to 2^ and it suddenly went away?? What the hell?
I have a 2020 trail boss with the 5.3 had it since it had 7 miles I just hit 68k it started the exact freaking noise about a week ago I was thinking harmonic balancer
Mine was making that noise and acting very strange and come to find out somebody bumped that knob and put me in four high... I hope this helps anyone else out there that this may have happened to.
HEY FRIEND MY 2021 chevy is making same noise i took it to a shop they said it was alternator changed it still making noise its got 43,000. THEY CHARGED THE WARRANTY COMPANY $500.00. TOTAL NOISE STILL THERE , WHAT WAS UR CAUSED FROM ?
wow, sounds like Chevrolet has an issue with the idler pulleys.. my 2021 rst started making the same sound at 48K miles... taking it to the dealership this week
My trail boss 2021 had the same issue recently, went to the dealership and got the lifters and pulley switched , now it doesn’t make the shunning noise but still feels a bit shaky when driving , does anyone know what the problem could be
My 2020 GMC, is making the exact same noise. It just hit 30 K when you pop the hood you don't hear underneath the hood so I'm thinking it's not the idler pulley. It's louder when you walk down the side of the cab. Has anyone else experienced this?
I also have a 21 Silverado and I noticed the exact same sound since the past few days... I haven't took it to the dealer yet have you found out the problem that you fix it??????
Go to the dealer I have the same truck and got the pulley and lifters changed , the whining stop but it shakes a buy while driving. Let me know how it goes for you
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This was a very helpful video and so are the comments. I have a 2021 Silverado making the identical noise. Following on the comments, I took it to a mechanic and suggested the idler pulley was out. Turns out that’s exactly what it was. Thanks!
@gregmac2392 this is the same sound my 2020 Silverado just started making . Is this something that is covered under the chevy warranty ? Or about how much did it cost you to get it fixed ?
My 2020 just started doing this!
Mine 2😂 but I got 75kmi warranty wtf! Such a bs for such a newer truck
@@Guanacoboican I ask how many miles at which it started?
Holy crap, that's the EXACT sound mine is making! The pitch rises in time with acceleration! Wow! Thanks! So maybe it's more simple than I thought, I was scared it was the trani!❤ Update-- it was the trani🥺 BUT, I found a really great guy down in Houston to rebuild it, and it cost way less than I thought it would😊
Hi do you have his info?
There should be a recall on it or something this is ridiculous, new trucks needing replacement parts. This was a very helpful video and comments I greatly appreciate it.
Ive been watching this video and reading these comments for the last couple weeks looking for answers on my 2020 trail boss with 43k miles. Was having the same noise so i took it into the dealership to get everything looked at including the idler pulley and torque converter but where i live it has to sit at the dealership for 2 weeks before it even gets looked at so i went to pick it back up after a couple of days because i simply cannot be without a vehicle. Im the original owner so i still have the 560 warranty however i was sweating bullets because i had put a k&n intake on, so i went to go get it to put the stock one back on then take it back like a week later so i would not void the warranty. Turns out that the noise completely disappeared after i put the stock intake back on. It makes no sense to me how or why there should be sensors all over that tell me im getting either too much or not enough air. My advice is that if you have an aftermarket intake put the stock one back on first before you go drop any money on it.
That’s weird. Mine started doing that a few weeks after i put after market exhaust. I ordered the idle pulley and belt. Hopefully that’s it
@@Guanacoboi Was that it (the idler pulley)? I also have the after market intake. Hoping it's not that because I sold my stock intake lol.
100% idler pulley. Even tho you probably know that by now. 2021 Silverado 40k miles and idler pulley was going out. Had some people fooled with the supercharger sound.
Do you know what part number to order? My 2020 just started with 31k miles
The issue with my 2021 Silverado 5.3 engine with 15,600 miles , was a bad tensioner pulley and serpentine belt . There’s no whining now . But I’m still saying , those type of issues normally happens miles down the road . I’m glad it wasn’t more serious.
Was yours covered under your warranty I’m having the same problem with my 2021 trail boss
What parts did you order? Part numbers? Thanks
My 2006 2500 Silverado that I’ve had since 06 just barley starting doing it
@@chuyg522 it’s the idler pulley. I changed it on mine along with the belt bc you have to as well and it sounds quiet and smooth now 😎
Literally took my 2020 6.2 Silverado in today, same sound. Idler Pulley - warranty fix, couple of hours work.
I’ve got that same sound coming from my 2021 chevy Silverado LT 5.3 engine 15,567 miles on it . It’s a lot louder at start up . Bought truck new, had liters replaced on drivers side of engine 3 months ago. Now this , it’s at the dealer right now , don’t know verdict yet. Martin , in Houston , Tx.
Does it make a sound when you let go of the gas ?
Hey buddy I ever find out what that noise was on your truck cuz mine do it too especially when I started up
Have you found out what it was
I’ve had same exact issue you had I made Chevy pay my truck payment for that month
Sounds like you got a supercharger under the hood.
Mines doing the same thing and I honestly love the sound 😂
@@Omar-cu3nlI also like the sound mine is making too, did you fix it?
Did you ever find out what the noise was my suburban does the same thing
That what I said 🤣🤣👍
Yup had this same problem went under hood and shot some lube on idler pulley and noise changed drastically. So went to dealership and they replaced belt plus idler pulley and it is quite like a brand new truck. They know this is a problem!!!
I’m in a rental and it’s doing it bad. 68k
About to spray it down like a clown!
Still loud. 😢
Great my 2021 trail boss has 37,000 miles on it. I'll be listening for this sound.
I took my belt off and started the truck and it still makes the noise, come to find out these trucks had a problem with the vacuum pump and that’s where my whine noise was coming from. So if anyone is wondering I would pull your belt off and if the noise continues I would start looking at the vacuum pump.
which vacuum pump? break vacuum?
For those who might care. I have a 2019 Chevy Silverado 1500 5.3 4x4 ltz. It was way to quite off the line for having an LS 5.3 so I cut the muffler and exhaust flap off and put a straight pipe in it's place it still comes out the passenger side behind the tire. IT SOUNDS AMAZING even with the automatic fuel management when it's in 4 cylinder mode its ok when I stomp on it or cold start. Its everything id expect and it sounds so aggressive!!!!!
Ive watched this video 50 times and been reading all the comments trying to get an idea of whats going on with mine. Im sure homie has got it fixed by now but i just got mine fixed with the same exact sound, it was a transmission fluid pump that had failed. Easy fix for the dealership. However if you’re reading this and you have the same issue i hope you are the original owner because mine would have been $4500 if i wasn’t under the original warranty. Dont go tearing apart your idler pulley or some shit like that. Anyway, as of october ‘23 as i write this chevy has been on strike for 2 months straight now so parts are extremely hard to get. Luckily the area i live has a huge inventory. Inflation has gotten fucked too and made parts expensive. If you have the same issue hopefully you have the 5,60 warranty or know a skilled mechanic cuz I already know i wouldn’t have dropped 4500 on that shit. On top of it all it was driving fine too with no check engine light.
This comment sounds the most correct to me. It sounds like power steering pumps used to sound when low on fluid.
It is definitely a fluid pump sound.
The only two fluid pumps on this truck are the oil pump and tranni fluid pump.
My truck is making the same sound. 2 weeks after purchase.
Does it also feel like it shifts down too early? Or like all the gears feel like 1st, as soon as you take foot off gas, the truck slows very quickly?
Thanks all
Same thing on my 2020 LTZ 6.2L with 28K miles. Thanks for the post. I was thinking it was a pulley but wasn’t sure but now i am
Damm I have a 2020 gmc sierra 40K miles mine just started making a low whining noise when I accelerate not really bad this should be a recall for our vehicles
Same sound and same issue I changed belt and going to change idler pulley dealership has said it’s a common problem and people have been changing those two parts
Thanks for the information
I have a 2021 Tahoe, z71. 89k miles, idler pulley, and shredded belt. Solved noise. Only cost $250 because of friends and family discount from a friend at Dobbs.
I also have a 21 Silverado…. Same noise. Idler Pulley “berring” is your issue. It’s a warranty repair fix… for those whose vehicle is still covered by warranty. Best of luck.
I have 2021 . 110k just started hearing this sound!
I had this same problem on my 2020 Trailboss with 45k miles. I changed the idler pulley and the sound is gone. The idler pulley bearing had failed.
. I discovered the buzzing vibration sound was coming from the fuel tank heat shield on the driveshaft side. I reached up to the top of the heat shield. I have a 2021 Chevy Silverado
It was my idler pulley on mine
Yep, me 2020 Chevy trailboss 5.3 just started making that noise a few days ago… I noticed it when music was off and was like wtf? It’s going in in a few days has 38k on the clock
Same sound on my 21, 44k miles. Sounds like idler pulley. Thanks for video.
Me too i have the 2020 5.3
@@robertsonmaciel7426same here. Did you get it fixed?
Sounds like the idle gear in the trans is starting to slip off the bearing brace
Wow something Completely different 😢?
Change the alternator, that's the problem. Look at the needle on your dashboard. This low one must also be in the middle.😊
I have a 2008 GMC Yukon just started making this noise this week feeling it’s idler pulley or belt maybe both I’ll update after I get it diagnosed I’ll keep y’all updated
I would recommend replacing both
Will do
I'm having this same noise and it's driving me nuts. In the past week I've replaced my idler and tensioner pulley, serp belt, stretch belt, water pump and thermostat and I'm running out of ideas of what it could be. Mine is a 13 silverado with 114k lifted (which has been a nightmare)
What you don’t like the hellcat sound? I just replaced mine in my 2021 just out of warranty due to mileage. Just over $100 for belt and idle pulley and used the zip tie belt install method.
Mine is a 21 Silverado . 36k doing the same thing. I said maybe it’s the idler pulley and all mechanics refuse to believe that. Mine goes in tomorrow too.
It was the in fact idler pulley. I had that and the belt changed and all is good!
Was it the idler pulley? Asking cuz my 2020 trail boss is sounding like the one in the video also. Sorry just seen your other comment.
@@haldenmaynard1130 was it under warranty? Or out of pocket ?
2020 Trail Boss, 18000 miles just started making that noise today
Bad whining in my old truck ended up being the alternator.
I have a 2015 chevy silverado 1500 5.3 with that same sound, its the water pump.
I got a 21 1500 z71 just started doing this on Monday 😢 gonna check out the belt and pulley see if it helps
I had the same problem. I just got it fixed at the dealership. It’s the pulling.
2020 Silverado 6.2L / 35,00 miles - Whining started 200 miles into a 500 mike trip.
I have a ‘21 with a 6.2 and 43k miles and it’s whining like a bitch. And need to make a trip of about 350 miles and don’t think I’m going to take the chance. Going to dealer next week. What was your outcome? Idler ?
My guy please do a follow up video if you have the problem fixed. I NEED to know what’s the problem because my 04 is making the exact same noise. I can’t figure out what’s making the noise
Did you fix the problem? My 05 Silverado is now making this noise
@@Kevin_Yagoonie power steering pump. Typical older GM trucks have had that noise problem
@@aidanhaller5800 geez I been having bad luck with it lately. First a brake line went out. Then the brake master cylinder leaked brake fluid in the booster and sucked fluid into the engine. Replaced the brake booster and master cylinder and while bleeding brakes a front line blew out. Now this damn whining noise. Haven't even got to put the front brake line in yet 😡
@@Kevin_Yagoonie well, its an 04. She’s a bit old
Its torque converter im guessing,,, stater bearings worn out from bad trans fluid,, there was a service bullitin for it gm
Same issue, I have a 2021 GMC Sierra with 32K miles. Part is on order. GM needs to do better!
What all do you have to replace sir?
@@bfro2018 idle pulley and belts had to be replaced. According to my mechanic at the dealership, “this is a common issue for all 2020-2021 GM model trucks.” The parts are under warranty and should be free of charge.
@@prestonkilpatrick6575 ok thanks glad they are under warranty will be goin to dealership thank you
I hit the three year mark … 6days ago
Would it still be under warranty on the power train warranty
Pay 40,000 dollars for a truck and you’d expect better.. but it is what it is
I had my 21’ in auto and switched it to 2wd. It started whining on the highway and making weird electronic noises from the transfer case
there is a service bulletin for this issue: 19-NA-136 ask your dealer about it
That is your power steering unit. Low Fluid, Wrong Fluid, or pinched hose-line.
Sounds exactly like engine driven power steering pump noise but it’s not. Silverado has an electric power steering pump that does not change frequency with engine RPM
I have a 97 sonoma 197k miles that makes that sound regardless if im in park or driving.
Belt idler pulley, oil pump, or transmission pump.
Just drove 2022 off the lot. Same noise 85 miles on truck. Taking it back tomorrow.
What was the outcome.
@@throwbacktailgaterso.c6317 they put me in a truck that had 7 miles and said see, its making the same noise. they said it was the turbo. BS (i have a 22 silverado 2.7l, this is my 2nd one because my other one was totaled 3 weeks after i got it and it was silent.)
Was it the 2.7 liter or the 5.3?
mine JUST STARTED making that exact same noise. i hope it’s an idler pulley
yeah guys mine started today when first start it was loud so i check, my suspicion was the idler pulley taking it back to dealer tomorrow 34k miles should be under wrnty
Have same noise one 2020 with 6.2 I think it's something to do with intake cause it sounds like it's trying to suck air , wish I had a lift to look underneath
Serpentine belt, had the same problem with my at4 6.2
My 2021 rst with 31k mile’s started making this sound while driving back from south Texas to Michigan based on a little knowledge it has to be a pulley im taking it to the dealership tomorrow we’ll see what it is
I have a 21 LT Z71 and I noticed that same whine on mine today
Make sure somebody hasn't accidentally hit your four-wheel-drive switch
Omg mine sounds like that could be your pulley bearings need to check and see which bearing it's coming from... Hopefully that might be the case
Test drove a 21 suburban used with 50k+ miles on it and it made the exact same noise and barely gave power even with the gas halfway down.
Idler pulley just had mine changed today iv got 21 trailboss with 6.2 in it. Same whine u have
by the way, mine is a 2008 trailblazer with 154,000 miles
Where you able to fix the sound that was coming from your truck I have the same issue happing to my truck
My 23 year old Sierra is making this noise. I feel bad for the folks hearing this with the newer models.
Same noise for my 2021 Z71 Tahoe
I’m having the same with my 2020 with about 27500 miles and no upgrades. Appointment in two weeks at dealership.
Mine was the idler pulley. There isnt a belt tensioner. Zip tie life hack is all you need
Please explain
@@chancewhite9641 youtube 2020 silverado serpentine belt life hack. Long story short. At least 4 zip ties. The crank shaft pulley. Once you have everything ready to go. You don't have to pull the belt too tight. Zip the belt to the crank shaft pulley. Start her up turn her off. All done
@@chancewhite9641 To get it off. You can cut it off. I took my idler pulley off on the top right. Pulling on the belt to release some tension. Came off no issue and no bind
Did you replace the pulley or just remove it
I replaced the idler pulley on the top right
Bro! I have a 2020 Silverado with 31k it just started doing that. What was it? What did you end up changing?? Thanks!
My truck just started having the same problem 2021 GMC sierra 38k miles. It goes in Saturday
my 2015 is doing something similar but not as loud , I just got the truck so I dont know if it is normal for a gmc to have some amount of engine whine like this or not, it sounds like the sounds a vehicle makes when the power steering pump is going bad or needs fluid but this truck only has 78,000 miles so I wouldn't think the power steering pump would be bad yet. it is under full warranty though, I guess I should just take it in! very annoying I have only had it for a week and already have found a few things that needed to be replaced/repaired.
Could be coming from the torque converter in the transmission, i got a 2014 sierra with 130k with a transmission that slips and my truck is starting to whistle on it, quite a few issues with the truck and only had it for a year.
Not impressed with GMC
@@Chah18 oup if your transmission is slipping your gonna need new one or rebuilt soon. My 2015 Sierra transmission blew out the other week. Now it's fixed and rebuilt but something is hissing around JLT hose I got or around the water pump
Hey how u doing did u ever get to see what that noise was on it truck mine do it
@@tonysimpson6022 they said it was transmission, rebuilt the transmission and it still makes the noise.....but also now the transmission is not working right so I wonder if it is the torque converter . I do not know but it is expensive to find out so I will tell you when I find out so maybe save you some $ I am taking it back in the morning . it is very frustrating.
@@AsTheWheelsTurn any update ? My trucks been making this sound since July.. even when its in park as long as the engine is on
Same noise on 2016 chevy sonic 88k miles on it….follow up video with solution would be nice 👍🏻
Sounds like a power steering pump
Did you ever get it figured out?? I have the same noise. Taking it in tomorrow to the dealership. I took off my pulsar lt and when I turned my truck on I have a check engine light now. Usually an idle pulley won’t cause the check engine light.
I have same noise too. What did the dealer tell you?
My 2018 gmc yukon xl starting to make that sound
Got the same noise on a 2023. Dealership said its normal. Wtf
sounds like an old car. something is definitely giving out.
update on yours?? my 2021 trail boss is doing the same thing
I have a 20/20 Silverado and I have the same problem with the winding noise as my truck accelerates what did you find out the problem was ?
I had this same noise, I replaced the idle pulley and the noise went off, the serpentine belt it’s little difficult to reinstall So be patient,
Did you get the noise taken care of? And what was it?😢
Same noise on my 2014 gmc 4X4, 156k miles, but the truck has to be moving forward, pushing the gas pedal and then it would get louder as I go faster. Once I let go of gas pedal and it would cruz on its own , noise would go away? Doesn't makes noise when truck is at stand still or idle. Today I switched my 4x4 nob from Auto to 2^ and it suddenly went away?? What the hell?
Did you leave in 4wd too long. Uh oh
I have a 2020 trail boss with the 5.3 had it since it had 7 miles I just hit 68k it started the exact freaking noise about a week ago I was thinking harmonic balancer
Hey guys just FYI not harmonic balancer or its bolt. It was the idler pulley
Mine did the same thing at 68k miles
I hear more of the noise at bottom that why I thought it was harmonic balancer. Where do did you hear it get louder?
My 21 trailboss is doing the same thing.
What was the issue?
2019 sierra 5.3. Have the same sound. They replaced the idler pulley and belt. No change and now they say it’s a normal sound from the oil pump 🤦🏻♂️
I would go to another dealer, seems everyone on this page is giving the diagnosis .
Let me know if you got it fix an what it was bro! Im taking my 2020 gmc sierra next tuesday to get it fix same issue only 41,000 miles
Same issue here, i will be taking my 2020 gmc sierra denali on Friday 72000 miles.
does it sound as well when you rev at parked mode?
Mine was making that noise and acting very strange and come to find out somebody bumped that knob and put me in four high... I hope this helps anyone else out there that this may have happened to.
sounds like your power steering fluid is empty and trying to push air.
In my old ford the turbo was going out and whined like that
HEY FRIEND MY 2021 chevy is making same noise i took it to a shop they said it was alternator changed it still making noise its got 43,000. THEY CHARGED THE WARRANTY COMPANY $500.00. TOTAL NOISE STILL THERE , WHAT WAS UR CAUSED FROM ?
Idler pulley 100%
wow, sounds like Chevrolet has an issue with the idler pulleys.. my 2021 rst started making the same sound at 48K miles... taking it to the dealership this week
My 2020 just started to with 31k miles
I have a 2004 chevy avalanche that make that sound
My trail boss 2021 had the same issue recently, went to the dealership and got the lifters and pulley switched , now it doesn’t make the shunning noise but still feels a bit shaky when driving , does anyone know what the problem could be
Same here
I have the same sound!! Ugh . How much does it cost to repair?
2013 Silverado..... It was my tensioner pulley.
Did you get yours fixed
@@Bluey596 yes, it was a idle pulley, cost me $180 to repair at an indy shop
Idler pulley. Easy fix.
mine ONLY does this in 4 wheel auto. goes away in 2wd. no idea why
That’s how my Tahoe sound because it has cold air intake
Yeah idler pulley
It's your transmission.
I have a 21 silverado and mines doing the same thing and I just got a lifters spark plugs and cylinder head replaced
My 2020 GMC, is making the exact same noise. It just hit 30 K when you pop the hood you don't hear underneath the hood so I'm thinking it's not the idler pulley. It's louder when you walk down the side of the cab. Has anyone else experienced this?
Crazy 21 Sierra 30k and same noise, let’s us know when you find out what it is.
Idler pulley
@@urielrodriguez4672🧐
Why would you complain? It sounds cool.
I also have a 21 Silverado and I noticed the exact same sound since the past few days... I haven't took it to the dealer yet have you found out the problem that you fix it??????
Go to the dealer I have the same truck and got the pulley and lifters changed , the whining stop but it shakes a buy while driving. Let me know how it goes for you