Annoying whine in 2019 rst

[Asmith721]

I have a 2019 Silverado rst. I’ve recently noticed this loud whine coming from my engine/trans area. It doesn’t seem to be rpm dependent, and I notice it mostly at low rpm or when parked and running at idle. Has anyone else noticed this problem? 

[Transient]

Not since I divorced my ex-wife.  I apologize if she found her way to you.  Going faster so the engine/exhaust would drown out the sound of her yapping always worked for me, even though it was temporary. 

 

[rcslotcar]

I just recently had that same type of problem on my 2020 at4 6.2l.  The problem for my truck was the idler pully.

[newdude]

We've had a run on idler pullies and serpentine belts on the 5.3 and 6.2 for squealing and whines.  2019-2024.

[GMCustomerService]

On 3/1/2025 at 9:32 AM, Asmith721 said:

I have a 2019 Silverado rst. I’ve recently noticed this loud whine coming from my engine/trans area. It doesn’t seem to be rpm dependent, and I notice it mostly at low rpm or when parked and running at idle. Has anyone else noticed this problem? 

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[Asmith721]

21 hours ago, newdude said:

We've had a run on idler pullies and serpentine belts on the 5.3 and 6.2 for squealing and whines.  2019-2024.

It could be I guess, just doesn’t seem to fit the symptoms. Yesterday I threw it in the lift to change oil and hopefully find something else out about it, wouldn’t ya know it stopped making the noise after I made an appointment for this week. Luckily the dealer said it would be hard to diagnose without the noise present lol. Just my luck I suppose. I wanted to add the video I took on here for context but it says the file is too large and I’m not tech savvy enough to figure something else out. I guess I’ll let it ride and it’ll either stay away or something will blow.  

[newdude]

41 minutes ago, Asmith721 said:

It could be I guess, just doesn’t seem to fit the symptoms. Yesterday I threw it in the lift to change oil and hopefully find something else out about it, wouldn’t ya know it stopped making the noise after I made an appointment for this week. Luckily the dealer said it would be hard to diagnose without the noise present lol. Just my luck I suppose. I wanted to add the video I took on here for context but it says the file is too large and I’m not tech savvy enough to figure something else out. I guess I’ll let it ride and it’ll either stay away or something will blow.  

 

 

Upload it to Youtube then post the link to the video here.  

[Asmith721]

 

[BIGDOGx]

18 hours ago, Asmith721 said:

 

That sounds like a fuel pump about to die to me.... can't remember if a 2019 has a key or not but does it whine like this when you have the key in the on position, does it make this sound when the fuel pump goes active?

[Silverado4x4]

Try to spray some WD-40 around idler pulley bearing and shaft if the noise stops there's you problem just don't get it on the belt.

[Asmith721]

3 hours ago, BIGDOGx said:

That sounds like a fuel pump about to die to me.... can't remember if a 2019 has a key or not but does it whine like this when you have the key in the on position, does it make this sound when the fuel pump goes active?

No it’s got push button start. And I thought about that as well, some sort of electric pump but it sounds more from the engine area than by the fuel tank. Luckily I made an appointment for today at the dealer but it’s quit doing it and I got the “we can’t diagnose it when it’s not doing anything weird.” I love this truck but it’s given me troubles, trans issues, leaking oil lines up front, check engine lights, have a “service trailer brake” message whenever I start it that no one can figure out. Sometimes I think I shoulda kept my 2016.