Jump to content

Exhaust leak sound while under load

hotrdlx
 Share

Recommended Posts

AdamGMC2017 Enthusiast

AdamGMC2017

Posted
Posted
1 minute ago, TXGREEK said:

 


Sorry, didn’t get what motor you have?


Sent from my iPhone using Tapatalk

 

5.3L

  • Replies 142
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

Crafty34
Crafty34

Taking my truck to a shop on Friday to try and diagnose this issue. Mine has been getting louder. I will let you all know what they say. Sent from my iPhone using Tapatalk

Jonty711
Jonty711

and here is the TSB -   https://gm.oemdtc.com/6533/pip5395a-ticking-rattle-or-buzz-noise-heard-the-best-in-the-passenger-compartment-2014-2016-cadillac-chevrolet-gmc    

2016LTCC
2016LTCC

This noise is the last straw. Been a Chevy guy for years. Now ram and ford looking real nice. 

Posted Images

TXGREEK Senior Enthusiast

TXGREEK

Posted
Posted

Ok, found it, you’re running a 5.3, try adding a tank of super adding some Lucas fuel stabilizer line cleaner, travel about 100 miles, then floor it a few times, reconnect


Sent from my iPhone using Tapatalk

SarahsGMC Senior Enthusiast

SarahsGMC

Posted
Posted

If going over tracks made the sound intermittent then id continue looking for a rattle before changing up fuel or adding any additives. that's not going to stop an exhaust leak anyway.

20165.3Eco Enthusiast

20165.3Eco

Posted
Posted

Mind does exactly this. I only noticed it after they replaced my motor mounts for rough idle so I think it might be exhaust related as it seems to quiet down when going over bumps. Haven't had any other time to investigate. 

 

Other times it just goes completely quiet and stays that way for a while. Also seems like maybe the fuel pressure regulator is keeping the fuel pressure high under low load making the fuel event louder ? Sounds very similar to the injectors when at WOT. 

geswek Enthusiast

geswek

Posted
Posted

Update on the “Marbles in Metal Can”;

This is only a partial—I need more time to ensure it’s not a placebo effect.

I filled up with 93 octane and I have been unsuccessful in making the sound repairs. My usual testing method involves any type of grade where load is put on the engine.

I’ll post again in another tank full of gas used.


Sent from my iPhone using Tapatalk

mferry22 Enthusiast

mferry22

Posted
Posted

I have the 6.2 and have only used 93 octane from top tier gas stations. Usually mobil or shell.

ChristopherDB Enthusiast

ChristopherDB

Posted
Posted

I have 6.2L and also only use 93. I got a new exhaust installed today and the tick is still present, so apparently it's not an exhaust leak.

Crafty34 Enthusiast

Crafty34

Posted
Posted

Taking my truck to a shop on Friday to try and diagnose this issue. Mine has been getting louder. I will let you all know what they say.


Sent from my iPhone using Tapatalk

  • Like 1
Crafty34 Enthusiast

Crafty34

Posted
Posted
Does it sound like the video here -
 
?

Yes thats it.


Sent from my iPhone using Tapatalk
Jonty711 Enthusiast

Jonty711

Posted
Posted
1 hour ago, ChristopherDB said:

Is there a way to know if my VIN is applicable for that TSB? My dealer said it's not but I feel like they don't know what they're doing.

Not sure. 

  • 1 month later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • BCGM
      Remote Start Noise 2024 2500 HD Gas

      By BCGM · Posted

      2024 Chevrolet 2500 HD Custom 6.6 Gas Canadian built Truck  I tried to search for my previous thread on this topic but cant find it so my apoligies  for starting another one    #1   Since we have owned our truck purchased new it has this strange noise after using the remote start function  you press the remote start and you hear it start but right at the end of it starting it almost seems like it wants to start again after the truck is running .   There is no gap in time it is right at the end of the start . Almost sounds like when you have started a car/truck and its running and then you try and start it again and you get that grinding noise ,sort of     #2  You can only hear this if you are standing outside of the truck and near the truck  you cant hear it when you start the truck from inside  the cab . So it may very well be happening when starting the truck that way as in normally    #3   This only happens when it is started after sitting . For how long I don't know but it happens after sitting overnight for sure and it wont do it if you stop the engine after starting and then start it again  I have had it in to the Dealership before concerning this but they did not have the truck  when it was cold to hear it . Now its back in the Dealership left it overnight so they could possibly hear the problem . They said they tried and nothing happened . Well they did not know what they were listening for . I started the truck remotely and BINGO it makes the noise . Oh that sounds weird they say . We need to look into it ! I have left for this week at the Dealership    Does your 2024 2500 HD gas do this ?  Any of you fellas care to take the time and trouble to film this operation from a cold start  so I can hear what your sound like  Really  would like to know if this is anormal sound  Thank You Fellas !!
    • Slow
      2026 Z71 Forward and Rear Park Assist help

      By Slow · Posted

      2026 Z71.  The other day I was backing a trailer into the barn.  The alarm was going off just because the trailer was in the field of the warning sensors when you get too close to something.  For some reason now the warning alarm doesn't work anymore.  It used to go off when I was just normally backing my truck into garage.  I still have the guidelines in the back up camera.  Is there a button or something to push to turn the sound/Alarm on and off?  I have the touch screen in this truck.  There isn't a "P" on the dash except for the parking brake.  I can't find anything in the touch screen under settings or vehicle.  Thank you in advance.  
    • KARNUT
      Post Pics of your "Other" Rides

      By KARNUT · Posted

      Well one of our most reliable vehicles was sold yesterday. The first and only I gave for free to a grandkid. If they got skin in the game they take care of it. My wife bought new. Five years later my daughter got it to use. We got it back and gave it to our grandson after graduation. He did zero maintenance just oil changes. When the AC quit he drove his mother’s car rather than get it fixed. Instead he just bought a beater and sold the Elantra. 
    • KARNUT
      OCI, not when but why?

      By KARNUT · Posted

      I usually do as well or better than the sticker for mileage. Usually better going west than east. North then South. Wind makes a difference. I’m not usually a conspiracy theorist. But it did dawn on me I’m going by the vehicle calculation. Now that would be interesting.
    • Grumpy Bear
      OCI, not when but why?

      By Grumpy Bear · Posted

      https://www.msn.com/en-us/autos/news/fuel-economy-stickers-don-t-tell-the-whole-story-aaa-data-reveals-why/ar-AA26ocHk?ocid=winp2fptaskbarhover&cvid=6a4122ea3dae47e5b8dfbed5d4fd3d55&cvpid=648f6b4fc2fa4eddb4c12893aeb957ed&ei=59

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...