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Chirping/Ticking noise from exhaust on 2018 Sierra 1500

Rberry

By Rberry
in Engines & Drivetrain

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Rberry New Member

Rberry

Posted
Posted (edited)

 

I have a 2018 GMC Sierra 1500 Denali with the 6.2, it has TSP Stage 2 cam, headers, tune, intake manifold, and CAI.  I have this weird chirping/ticking noise coming from the my exhaust while driving. I only hear it around cruising speed/rpms. I can also hear what I assume is the exhaust going through the headers/piping underneath the driver floorboard but it was like that since I got the headers install so I assumed that was normal, maybe it's not? My exhaust up to the headers is brand new and I have checked it for leaks, it is fine. Not sure what it could be, I'm thinking either exhaust manifold leak or headers are messed up somewhere. Hopefully it's nothing more serious, it's been going on for awhile and doesn't seem to have caused any issues it's just annoying to hear. Anyone got any ideas on what it could be?

 

 

Edited by Rberry
CamGTP Senior Enthusiast

CamGTP

Posted
Posted

I can hear it but I'm not sure what the cause would be.

 

Most stainless headers are using very thin metal and that is why you hear the exhaust through the floorboard like that. You can basically hear the valvetrain noise because of it. The cast manifolds are very thick and dampen those type of sounds. Possible that header wrap would lessen those sounds.

GMCustomerService Senior Enthusiast

GMCustomerService

Posted
Posted
On 12/11/2022 at 8:01 PM, Rberry said:

 

FTFI7492[1].MOV 5.8 MB · 0 downloads

 

I have a 2018 GMC Sierra 1500 Denali with the 6.2, it has TSP Stage 2 cam, headers, tune, intake manifold, and CAI.  I have this weird chirping/ticking noise coming from the my exhaust while driving. I only hear it around cruising speed/rpms. I can also hear what I assume is the exhaust going through the headers/piping underneath the driver floorboard but it was like that since I got the headers install so I assumed that was normal, maybe it's not? My exhaust up to the headers is brand new and I have checked it for leaks, it is fine. Not sure what it could be, I'm thinking either exhaust manifold leak or headers are messed up somewhere. Hopefully it's nothing more serious, it's been going on for awhile and doesn't seem to have caused any issues it's just annoying to hear. Anyone got any ideas on what it could be?

 

 

This is certainly not what we like to hear, Rberry.  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 2018 GMC Sierra 1500 Denali. To do so, please send an email to [email protected] with ATTN: Rberry/GM Trucks in the subject line.

Please include your contact information, VIN, a brief description of your concern, and the name of your preferred dealership. We look forward to hearing from you. To learn more about GM’s Privacy Policy, please visit https://www.gm.com/privacy-statement.html. The information you provide may be monitored and recorded and is subject to the GM Privacy Statement.
 
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  • Haha 1
JONBLARC7 Enthusiast

JONBLARC7

Posted
Posted

Not sure if this is it.  But check just above the muffler.  There is a heat shield that can come lose and flap in the wind at cruising speeds.  I happen to me when I put my 1.5" body lift on.  There was more wind getting up under the truck and making it tap the bottom of the cab.

 

 

I couldn't get the video to load.  I have the same setup on my truck but now I have forged pistons.

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