Loud ticking from under truck

busta350 · February 4, 2023

Hello. I have a 2021 silverado with the 6.2 in it with 12000 miles. I have been having trouble with the truck since shortly after buying it. Of course the dealer is saying nothing is wrong. The truck seems really sluggish. I've been hearing a loud ticking sound from under the truck that at times I can hear from a good distance way. It sounds like a clock ticking. Another problem I'm having is there's times when coming to a stop the rpm drops really low like the truck is gonna die. The truck doesn't like hills and starts to whine sometimes and there's quite a bunch of vibration. The dealership says there's no check engine light and that my exhaust is causing the vibration even though it shakes when stoped st a light.

Silverado4x4 · February 4, 2023

9 hours ago, busta350 said:

Hello. I have a 2021 silverado with the 6.2 in it with 12000 miles. I have been having trouble with the truck since shortly after buying it. Of course the dealer is saying nothing is wrong. The truck seems really sluggish. I've been hearing a loud ticking sound from under the truck that at times I can hear from a good distance way. It sounds like a clock ticking. Another problem I'm having is there's times when coming to a stop the rpm drops really low like the truck is gonna die. The truck doesn't like hills and starts to whine sometimes and there's quite a bunch of vibration. The dealership says there's no check engine light and that my exhaust is causing the vibration even though it shakes when stoped st a light.

The ticking noise in the video I wouldn't worry about it my 2019 5.3 has the same noise and has done it since new. I hear it on first start after driving it and everything is warm its gone. Do you have a aftermarket cold air intake as I have heard of those issues about the idle you are saying.

Edited February 4, 2023 by Silverado4x4

busta350 · February 4, 2023

The truck is all stock except for a aftermarket muffler. The ticking like a clock never goes away I can drive for an hour and it will still be there.all this started after being in stop and go traffic the motor started to die then the truck jerked forward but it was like the motor and transmission bound up the let loose with a big bang under the center console and the whole truck felt like it twisted.

Bikerjon · February 5, 2023

Not normal. I really could not hear the ticking in your video but the truck has no power? Truck doesn't like hills? Motor and trans bound up? A T1 with a 6.2 should have tons of power. My 2021 with a 5.3 has lots of power. I would take your truck to a different dealer and talk to the Service Manager. You need to have a Mechanic test drive your truck with you so you can clearly demonstrate the problems/symptoms you are having. Write down all the problems you are having so you can clearly describe all the symptoms. The dealer you took your truck to the first time sounds like they don't give a s**t about you or your truck. If you cannot get some help from a different dealer then you should contact Chevrolet Customer Service.

GMCustomerService · February 8, 2023

On 2/3/2023 at 11:31 PM, busta350 said:

Hello. I have a 2021 silverado with the 6.2 in it with 12000 miles. I have been having trouble with the truck since shortly after buying it. Of course the dealer is saying nothing is wrong. The truck seems really sluggish. I've been hearing a loud ticking sound from under the truck that at times I can hear from a good distance way. It sounds like a clock ticking. Another problem I'm having is there's times when coming to a stop the rpm drops really low like the truck is gonna die. The truck doesn't like hills and starts to whine sometimes and there's quite a bunch of vibration. The dealership says there's no check engine light and that my exhaust is causing the vibration even though it shakes when stoped st a light.

This is certainly not what we like to hear, busta350. Please know, customer satisfaction is extremely important to us. Our team would be more than happy to take a closer look into the concerns with your 2021 Chevrolet Silverado. To do so, please send an email to [email protected] with ATTN: busta350/GM Trucks in the subject line.

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busta350 · February 12, 2023

I've taken the truck back twice for this same problem. They say they can't replicate te problem. This truck vibrates and has funky shifting all the time and not close to the power it had when I bought it. I got told to dive it till it breaks down so I get stranded. I used to average 14 mpg going to work now I average 9.