Notices
GMT K2xx Trucks General Discussion 2014+ Trucks | General Discussion

Weird Exhuast Note/Ping Sound

Thread Tools
 
Search this Thread
 
Old 04-08-2019, 06:34 PM
  #11  
Custm2500's Rude Friend
iTrader: (17)
 
1FastBrick's Avatar
 
Join Date: Apr 2007
Location: JunkYard
Posts: 14,321
Received 758 Likes on 627 Posts
Default

I think it's just drone from the exhaust. It's likely hitting a certain frequency at that RPM. Maybe the muffler choice.

Otherwise the Holmes? resonator thing. i think thats what its called.
Old 04-08-2019, 06:35 PM
  #12  
Custm2500's Rude Friend
iTrader: (17)
 
1FastBrick's Avatar
 
Join Date: Apr 2007
Location: JunkYard
Posts: 14,321
Received 758 Likes on 627 Posts
Default

Like this... https://www.performancetrucks.net/fo...-drone-489463/
Old 04-08-2019, 06:36 PM
  #13  
Launching!
Thread Starter
 
hunterbohanan23's Avatar
 
Join Date: Jan 2016
Location: OKC
Posts: 248
Received 12 Likes on 12 Posts
Default

Weird thing to me is it sounds like it’s coming from the middle
of the truck where the headers and y pipe are. I really wanted to leave the exhaust stock for a couple weeks but this sound is killing me. i’m fixing the only other minor leak on the driver header but it’s so minimal that a better clamp wasn’t really needed but I want 100% assurance on any leaks. I really don’t want to chop anything off and it be too loud.. I wonder how it’ll sound without the resonator and only stock muffler
Old 04-08-2019, 06:48 PM
  #14  
Custm2500's Rude Friend
iTrader: (17)
 
1FastBrick's Avatar
 
Join Date: Apr 2007
Location: JunkYard
Posts: 14,321
Received 758 Likes on 627 Posts
Default

IMO, I think it's the larger 6.2 exhaust and the 5.3 not filling like the 6.2 would.

Not sure if I am explaining this right. But It's hitting a certain frequency in that RPM range and that resonance is what your hearing. That thread Explains what is going on .
Old 04-08-2019, 06:52 PM
  #15  
Launching!
Thread Starter
 
hunterbohanan23's Avatar
 
Join Date: Jan 2016
Location: OKC
Posts: 248
Received 12 Likes on 12 Posts
Default

I see what you mean. Only thing with that, is black dodge and pooter both are running the same setup without the same note.. only option is to hack the muffler at this point and see what it does
Old 04-08-2019, 06:56 PM
  #16  
Custm2500's Rude Friend
iTrader: (17)
 
1FastBrick's Avatar
 
Join Date: Apr 2007
Location: JunkYard
Posts: 14,321
Received 758 Likes on 627 Posts
Default

Well like they said, Maybe your fighting a leak somewhere. Those headers are made in China and I have seen lots of complaints about leaks and fitment on certain applications.
Old 04-08-2019, 07:24 PM
  #17  
TECH Fanatic
 
Bgbldodge's Avatar
 
Join Date: Sep 2013
Location: Georgetown, TX
Posts: 1,596
Received 753 Likes on 529 Posts
Default

In that second video it sounds like it happens when it's shifting and that sounds like the torque management kicking in. Mine makes a weird sound when it shifts that sounds similar although I only hear mine from the rear. My charger before my tuner got the tuned dialed in made the same noise when it shifted.
Old 04-08-2019, 07:25 PM
  #18  
Launching!
Thread Starter
 
hunterbohanan23's Avatar
 
Join Date: Jan 2016
Location: OKC
Posts: 248
Received 12 Likes on 12 Posts
Default

yeah true.. regardless I hate it. Muffler shop or tune first to see what works? the other option will follow two weeks after
Old 04-08-2019, 07:27 PM
  #19  
TECH Fanatic
 
Bgbldodge's Avatar
 
Join Date: Sep 2013
Location: Georgetown, TX
Posts: 1,596
Received 753 Likes on 529 Posts
Default

If it's torque management then only a tune will fix it. I'll try and get a video of mine in the morning of how it sounds when it shifts assuming I don't get my custom tune from Lew by then.
Old 04-08-2019, 08:53 PM
  #20  
TECH Junkie
iTrader: (40)
 
00pooterSS's Avatar
 
Join Date: Mar 2008
Location: Dallas
Posts: 3,189
Received 257 Likes on 215 Posts
Default

Originally Posted by Bgbldodge
Guess I got lucky. I just crawled under mine and I don't have any soot stains from leaks or feel any air coming from the joints while at idle.
Didn't have stains on mine and it leaked. I knew I had leaks because I used a stethoscope with a pipe attachment that lets you hear leaks (vacuum or exh) really well and mine leaked quite a bit. Didn't have soot build up or stains on mine either. It took a good month or so for me to see any visual sign of a leak.

Then I wrapped it all with foil and used the wide clamps and it got a lot quieter. I've been exactly in your shoes and tried to stop the leaks many times.

I can promise y'all if you use the speed engineering clamps you have leaks. It's literally impossible for those clamps to smash the pipes together hard enough to stop the leaks.

Unless y'all used the u bolt clamps and smashed the **** out of the pipes. I've tried to pull pipes apart before that had had those on there, you have to just cut that section out so I didn't use them. I'm referring to the flat band clamps that will leave you with leaks.


Quick Reply: Weird Exhuast Note/Ping Sound



All times are GMT -5. The time now is 03:42 AM.