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Engine Tick - 2015 GMC Sierra 5.3

tobinstetson
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Dnt Senior Enthusiast

Dnt

Posted
Posted (edited)

Cannot hear anything but some roaring in the audio clip....... can you identify the exact time stamps on the audio clip to really listen in for some tick noise? Might just be the HVAC mixing door motor clicking where the plastic gear teeth are broken off? Turn your HVAC OFF BAM problem solved.

Edited by MyFavTruck
  • 2 weeks later...
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WesternMike
WesternMike

My 2014 Silverado is at 120,000 and running just as good as day one, not one issue with it. I know there’s problems out there, but complaining to others saying “should of bought a ford” doesn’t help

Colossus
Colossus

You'll be leaving blue oval quick enough.. they are not any better.

Crafty34
Crafty34

Just got this from a buddy at my local dealer. Looks like Chevy is aware and they are working on a fix. Sent from my iPhone using Tapatalk

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tobinstetson Enthusiast

tobinstetson

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I called my GM dealer and asked what is the next move into fixing the noise in my truck. They told me GM said the only bulletin out now to correct engine noise is a fuel pump replacement so thats it.

 

I said this is unacceptable that the diagnostics stops there because someone in Detroit doesn't have a fix. She said come in and go for a drive with the tech's again. I hope to get in tomorrow.

 

in the meantime, I think tonight i'm going to try to tape my iphone somewhere secure in the engine bay, and record the noise as I drive to see if I can hear it better from under the hood. Maybe it work. maybe it'll just be wind noise.

tobinstetson Enthusiast

tobinstetson

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Stopped into my Dealer today and talked with two tech's. They are now going to replace the lifters in the truck. The tech said he knew as soon as he drove after the initial repair that the fuel pump didn't fix it and i'd have to come in and complain again. I wish they'd tell you all this stuff. i was pretty mad in between service visits.

 

i hope the lifters fix the issue. I have an video of the noise. I'll try to clip it down and post it.

lonnieD Enthusiast

lonnieD

Posted
Posted

Add mine to the list of ticking.. I hear this noise on and off while driving.. It drives me nuts. I can't believe there is no fix for this?

  • 2 weeks later...
tobinstetson Enthusiast

tobinstetson

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I think my truck is fixed!! :thumbs::cheers:

 

My Truck went into the dealer on Tuesday morning for the Engine Tick. The tech explained to me that the AFM uses collapsable valve lifters acutated by oil pressure to shut off and turn on the 4 cylinders. He said sometimes they go bad and the valve lifters "tick". Two days in the shop and I got it back last night. So far so good!

 

Fingers Crossed, but it seems that found the tick. I hope this helps everyone else figure out the noise they are experiencing.

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MOhunter92 Enthusiast

MOhunter92

Posted
Posted

I've been battling with GM about this a long time. I took a video of the issue I'm hearing. Is this the same issue that you guys are all experiencing?

 

 

This is exactly what my 16 does. So annoying.

 

 

Sent from my treestand using Tapatalk

I think my truck is fixed!! :thumbs::cheers:

 

My Truck went into the dealer on Tuesday morning for the Engine Tick. The tech explained to me that the AFM uses collapsable valve lifters acutated by oil pressure to shut off and turn on the 4 cylinders. He said sometimes they go bad and the valve lifters "tick". Two days in the shop and I got it back last night. So far so good!

 

Fingers Crossed, but it seems that found the tick. I hope this helps everyone else figure out the noise they are experiencing.

Please report back on this, did that fix t?

 

 

Sent from my treestand using Tapatalk

paticus Enthusiast

paticus

Posted
Posted

Stetsie, I'm highly interested to understand in detail what was replaced on your truck so I can instruct my incompetent dealership to do the same. Assuming this is resolved for you. The diagnosis definitely aligns with the issue.

GMC207 Enthusiast

GMC207

Posted
Posted

My truck sounds just like that...I thought it was normal, so back to the dealer we go haha. The list just keeps growing.

tobinstetson Enthusiast

tobinstetson

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This is exactly what my 16 does. So annoying.

 

 

Sent from my treestand using Tapatalk

 

Please report back on this, did that fix t?

 

 

Sent from my treestand using Tapatalk

Hi MO,

It has fixed the problem. I still get a slight DI noise but thats okay. The really deep tick noise is gone! Hope you can take this to your dealer and say that the valve lifters need replacement

MOhunter92 Enthusiast

MOhunter92

Posted
Posted

Hi MO,

It has fixed the problem. I still get a slight DI noise but thats okay. The really deep tick noise is gone! Hope you can take this to your dealer and say that the valve lifters need replacement

Thanks man. I did notice yesterday that the tick goes away if my a/c is off! Takes about 30 seconds with it off and gone. It makes this sound in the video I'm posting. I figured there was no way for me it could be lifters because it is not a constant tick, also doesn't do it at idle. You have to turn your volume all the way up to hear the ticking https://vimeo.com/183200747

 

 

Sent from my treestand using Tapatalk

tobinstetson Enthusiast

tobinstetson

Posted
  • Author
Posted (edited)

Stetsie, I'm highly interested to understand in detail what was replaced on your truck so I can instruct my incompetent dealership to do the same. Assuming this is resolved for you. The diagnosis definitely aligns with the issue.

Hi Paticus,

They replaced the 8 valve lifters on the driver side bank of the motor along with all the gaskets and seals that go with that. By the look of the work order, they had to removed the cylinder head to do the work and also replaced the exhaust manifold on that side. If you add up the work order, it's pretty expensive.

 

I should note that this noise was not the DI tick. my valves were definitely messed up. sometimes pulling a trailer up a hill i thought the valves were going to come through the hood. haha

Edited by stetsie
MOhunter92 Enthusiast

MOhunter92

Posted
Posted

Hi Paticus,

They replaced the 8 valve lifters on the driver side bank of the motor along with all the gaskets and seals that go with that. By the look of the work order, they had to removed the cylinder head to do the work and also replaced the exhaust manifold on that side. If you add up the work order, it's pretty expensive.

 

I should note that this noise was not the DI tick. my valves were definitely messed up. sometimes pulling a trailer up a hill i thought the valves were going to come through the hood. haha

 

Hi Paticus,

They replaced the 8 valve lifters on the driver side bank of the motor along with all the gaskets and seals that go with that. By the look of the work order, they had to removed the cylinder head to do the work and also replaced the exhaust manifold on that side. If you add up the work order, it's pretty expensive.

 

I should note that this noise was not the DI tick. my valves were definitely messed up. sometimes pulling a trailer up a hill i thought the valves were going to come through the hood. haha

 

Hi Paticus,

They replaced the 8 valve lifters on the driver side bank of the motor along with all the gaskets and seals that go with that. By the look of the work order, they had to removed the cylinder head to do the work and also replaced the exhaust manifold on that side. If you add up the work order, it's pretty expensive.

 

I should note that this noise was not the DI tick. my valves were definitely messed up. sometimes pulling a trailer up a hill i thought the valves were going to come through the hood. haha

See mine is nowhere near like that. It's very faint chattering, definitely noticeable and annoying but in no way ever caused me to worry that something was that wrong

 

 

Sent from my treestand using Tapatalk

tobinstetson Enthusiast

tobinstetson

Posted
  • Author
Posted

Thanks man. I did notice yesterday that the tick goes away if my a/c is off! Takes about 30 seconds with it off and gone. It makes this sound in the video I'm posting. I figured there was no way for me it could be lifters because it is not a constant tick, also doesn't do it at idle. You have to turn your volume all the way up to hear the ticking https://vimeo.com/183200747

 

 

Sent from my treestand using Tapatalk

You must have a different issue than my truck. My noise was not dependant on the AC on/off.

MOhunter92 Enthusiast

MOhunter92

Posted
Posted

You must have a different issue than my truck. My noise was not dependant on the AC on/off.

Until Friday it was always there, but I have a/c on most of the time so the other day it was off and I didn't notice it and then I figured out this was it.

 

Was your ticking very loud or subtle? At idle?

 

 

Sent from my treestand using Tapatalk

tobinstetson Enthusiast

tobinstetson

Posted
  • Author
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Until Friday it was always there, but I have a/c on most of the time so the other day it was off and I didn't notice it and then I figured out this was it.

 

Was your ticking very loud or subtle? At idle?

 

 

Sent from my treestand using Tapatalk

My engine was normal at idle and light load. but under load in V8 and V4 mode it started making a loud tick.

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