Is this the dreaded lifter tick? (2017 GMC Sierra L83)

[Hexa Fox]

Hey guys, 

 

Don't grill me if I have posted about this before because I think I have. However, the last few times that I have changed the oil in my truck I have been hearing this 'intermittent' clicking/ticking sound. If you listen very closely you can definitely hear it on when I am standing in front of the truck but it becomes more pronounced once I am under the truck. I just took the mileage today, it has 34,823 miles on it. I have tried to listen to some of the other videos online for comparison but mine seems different or possibly not as bad. Any way I was hoping someone could tell me this sound is something else or nothing to worry about but I am all ears. 

 

Also changed the oil today and it has been just slightly more than a year. I always use full synthetic 0W-20 and last year it got Mobile 1. This year it got the Kirkland 0W-20 from Costco so hopefully it will perform as well as it did in Project Farms test. My Elite Engineering catch can was completely full yet again, so looks like I am going to have to empty it more regularly. Any way I do not put that many miles on the truck and the oil today was literally black, looked like it hadn't been changed in years. I really doubt I even put 3,000 miles on it. 

 

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Edited February 11, 2025 by Hexa Fox

[PunchT37]

Sounds fine to me.

[Hexa Fox]

17 minutes ago, PunchT37 said:

Sounds fine to me.

and that is good news for me! Thanks for stopping by. Any clue what the click could be? 

[PunchT37]

1 minute ago, Hexa Fox said:

and that is good news for me! Thanks for stopping by. Any clue what the click could be? 

My new 2025 does the same thing. Out of time with the cam. As a past 25 yr mechanic, I`m trying to figure that out myself. It`s not the engine. I run the piss out of mine. If it was the engine, it would fail at 5600 rpm`s multiple times.

[rlcole321]

The frequency of the sound doesn't seem to match the eng rpm, sounds more like possibly serpentine belt noise, try spraying wd40 on the belt while listening to it underneath and just see if it changes or goes away.

[Hexa Fox]

On 2/10/2025 at 8:25 PM, PunchT37 said:

My new 2025 does the same thing. Out of time with the cam. As a past 25 yr mechanic, I`m trying to figure that out myself. It`s not the engine. I run the piss out of mine. If it was the engine, it would fail at 5600 rpm`s multiple times.

 

I may have figured it out. I was recently watching a video and a guy had the exact same tick. I read the comments and several people mentioned that it is your high pressure fuel pump. They said you can quiet it down by adding premium fuel to it. May try it on my next fill up just to see if it makes a difference. 

[PunchT37]

Just noticed the other day, my co worker`s `21 Z71, 5.3, with 8 speed, does the same thing. 83,000 miles. If you go for a ride and come back, noise is gone, if you get some heat in.

[Hexa Fox]

2 minutes ago, PunchT37 said:

Just noticed the other day, my co worker`s `21 Z71, 5.3, with 8 speed, does the same thing. 83,000 miles. If you go for a ride and come back, noise is gone, if you get some heat in.

The click in mine never subsides. Fortunately it never seems to get any worse either. Here is the video I just mentioned. You can clearly hear it is the exact same thing on my truck. 

 

 

[Racer311990]

Sounds like a loose spark plug to me. Mine have come loose a few times. Ticks just like a lifter