Jump to content

2015 Sierra All Terrain. Loud Pop/tap noise coming from the intake manifold while running and while engine is off

kgweststar

By kgweststar
in Troubleshooting & Recalls

 Share

Recommended Posts

kgweststar Enthusiast

kgweststar

Posted
Posted (edited)

 I can provide video. 73000 miles and recently started making a pop noise every 30 seconds to 1 minute no matter whether engine is off or not.  

Edited by kgweststar
Year
  • kgweststar changed the title to 2015 Sierra All Terrain. Loud Pop/tap noise coming from the intake manifold while running and while engine is off
kgweststar Enthusiast

kgweststar

Posted
  • Author
Posted

Hopefully these will help. I can feel the clang/clack sound when touching where the heat shield meets the first driver's side manifold head/chamber. I'm not real savvy, but I know that can't be normal.  Seems to be louder the longer it sits turned off. Does it slower and slower and finally stops an hour after running engine. 

CamGTP Senior Enthusiast

CamGTP

Posted
Posted

That's a odd one. The one picture is just the heat shield bolt broken off, I've seen that before but I wouldn't think that the heatshield would be causing the popping noise but I've been wrong before. That metal is pretty thin and is kinda like tin metal so they can flex and maybe make noise when heat cycles.

 

My other guess would be like a solenoid that is sticking, maybe for like the evap system but this also does it when the vehicle is off.

UrbanRage Enthusiast

UrbanRage

Posted
Posted

I have the same sound, and it started after I did the DoD delete. I'm sure the sound comes from the exhaust manifolds' heat shields expanding and contracting with the heat change. I have yet to have the time to loosen or remove them to satisfy my curiosity. I will say that when you have a problem with certain sounds (also known as Misophonia) as I do, it tends to drive me crazy when I'm around the truck after shutting it off, but other than that, I'm not too concerned.

kgweststar Enthusiast

kgweststar

Posted
  • Author
Posted
12 hours ago, CamGTP said:

That's a odd one. The one picture is just the heat shield bolt broken off, I've seen that before but I wouldn't think that the heatshield would be causing the popping noise but I've been wrong before. That metal is pretty thin and is kinda like tin metal so they can flex and maybe make noise when heat cycles.

 

My other guess would be like a solenoid that is sticking, maybe for like the evap system but this also does it when the vehicle 

I had removed the bolt trying to see if the sound changed in the heat shield, but it still made it after prying it away from the manifold. Picture is taken before I put it all the way back on. I thought about replacing my catalytic converter because I kind of feel it where the donut gasket is that meets the manifold. 

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

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,778
    Total Members
    8,960
    Most Online
    daveishi
    Newest Member
    daveishi
    Joined

  • Who's Online   0 Members, 0 Anonymous, 1,215 Guests (See full list)

    • There are no registered users currently online

  • Latest Articles

  • Posts

    • Jsdirt
      2027 GMC Sierra: Official Discussion

      By Jsdirt · Posted

      Because that is IDIOTIC, much like this question. They've already been forced to do it by past administrations - why would you roll that back when it's a GOOD thing?  WHO IS ARGUING FOR LOWER MILEAGE???? 😂  NOBODY IS!!   I'm certainly not! What I want is RELIABLE vehicles again that are worth the price paid!    I don't get your logic here ...   In 2003 I paid $2,200 for our '86 Grand Marquis. It's STILL running and I've never been inside the engine, aside for the timing cover since it was leaking, so I threw a new timing set in since that makes sense. Transmission is ORIGINAL. Electric pump in the gas tank is ORIGINAL. Rear end is ORIGINAL. I'd have to hit my head REAL hard to want to pay $60k or more for a car that still can't come close to the comfort, seating and storage space, or reliability of this one. Nothing is even in the ball park! Hundreds of thousands of brands and models have been built and sent to the crusher while this one keeps on going!   https://postimg.cc/Z9XRrCSg   I've got a whole fleet of cars, motorcycles, and a truck close to this age for summer and winter. No one could pay me enough to buy anything built this century. I have zero use for any it.
    • Jsdirt
      2027 GMC Sierra: Official Discussion

      By Jsdirt · Posted

      Since I'm the one who has to fix them when they break, I'll take vehicles over 30 years old all day, EVERY day, over ANY modern crap. Have you attempted any repairs on anything built after 2006? It's a friggin nightmare, and gets worse the newer the model year.    If I had the will or desire, I can make any car of any age outside of a Model T (I don't have THAT much will ...) just as powerful, comfortable, and have all the tech the new stuff does, and get pretty close in mileage, too. I prefer SIMPLICITY. The less the vehicle has, the less to fix WHEN it breaks, not IF.   I'm glad you snot-nosed punks don't like them. More for us, plus that keeps the prices from climbing more than they already have.👍
    • cautious optimist
      2027 GMC Sierra: Official Discussion

      By cautious optimist · Posted

      Bringing this thread back on topic. I just noticed the incredible lack of bright chrome across the entire new lineup. Even the Denali has tinted the brightwork in the grille and has none elsewhere. None of them have chrome bumpers. As far as I can tell there aren't even chrome mirror caps. I'm curious if this also happens out back? Are there no chrome rear bumpers either? This is quite the departure for GMC.
    • cautious optimist
      2027 GMC Sierra: Official Discussion

      By cautious optimist · Posted

      Bringing this thread back on topic. I just noticed the incredible lack of bright chrome across the entire new lineup. Even the Denali has tinted the brightwork in the grille and has none elsewhere. None of them have chrome bumpers. As far as I can tell there aren't even chrome mirror caps. I'm curious if this also happens out back? Are there no chrome rear bumpers either? This is quite the departure for GMC.
    • cautious optimist
      2027 GMC Sierra: Official Discussion

      By cautious optimist · Posted

      Bringing this thread back on topic. I just noticed the incredible lack of bright chrome across the entire new lineup. Even the Denali has tinted the brightwork in the grille and has none elsewhere. None of them have chrome bumpers. As far as I can tell there aren't even chrome mirror caps. I'm curious if this also happens out back? Are there no chrome rear bumpers either? This is quite the departure for GMC.

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...