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Bang Noise

supercrew_459

By supercrew_459
in Ask A GM Technician

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supercrew_459 New Member

supercrew_459

Posted
Posted

I have a 2006 Silverado 2500 6.0L 4x4. I am hearing this bang noise (sort of like a hammer hitting the muffler) periodically when the truck is warm. I am hearing this "bang" noise when the car is cooling off after a drive and when the car is idleing like in a drive thru or at a signal. It seems to happen every 30 seconds or so but it is starting to really bug me now. It sounds like something hitting a tin can but it is fairly loud. Does anyone know what this might be?

shorepatrol2 Enthusiast

shorepatrol2

Posted
Posted
I have a 2006 Silverado 2500 6.0L 4x4. I am hearing this bang noise (sort of like a hammer hitting the muffler) periodically when the truck is warm. I am hearing this "bang" noise when the car is cooling off after a drive and when the car is idleing like in a drive thru or at a signal. It seems to happen every 30 seconds or so but it is starting to really bug me now. It sounds like something hitting a tin can but it is fairly loud. Does anyone know what this might be?

 

 

 

sounds like maybe the exhaust is just expanding or contracting

ZZ327 Senior Enthusiast

ZZ327

Posted
Posted
I have a 2006 Silverado 2500 6.0L 4x4. I am hearing this bang noise (sort of like a hammer hitting the muffler) periodically when the truck is warm. I am hearing this "bang" noise when the car is cooling off after a drive and when the car is idleing like in a drive thru or at a signal. It seems to happen every 30 seconds or so but it is starting to really bug me now. It sounds like something hitting a tin can but it is fairly loud. Does anyone know what this might be?

 

 

 

sounds like maybe the exhaust is just expanding or contracting

 

 

 

 

 

 

ive got the exact same problem, only it happens when its under 60 degrees, 05 z71 5.3L . I looked at the exhaust. Check your connection that is right in front of the muffler, mine is loose. I can see the soot marks blowing from around it!

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