Very noticeable ticking sound coming from my engine

[foghorn23]

VMaxtastic,

 

I hope it isn't something major. Good luck with getting it fixed. If it is engine related at least it should be under warranty. If it is a lifter I'm a little more surprised since yours is a 6.2. I knew there had been some issues with the AFM lifters on the 5.3. Thanks for the update.

[VMaxtastic]

Yep both service managers I talked to kept mentioning AFM, and I told them this engine doesn't have it. Apparently those AFM motors make lots of noise.

[demech23]

VMaxtastic

 

Can you post a vidio so we can hear (relatively depending on microphone and speaker quality) what you are experiencing? I also wish you luck and hope that the dealer can find and fix your issue.

[VMaxtastic]

Ya I was thinking of getting my girlfriend to film while I rev it to 2000. I'll do that later.

[gnet158]

Not sure if engine size has much if anything to do with it. But when I purchased my truck I took her into the dealer for her first oil change at 4k and I had them do a mobil 1 syn oil chanage. Didn't hear a tick and I've been changing my own oil using Pennzoil and eihter Wix or Puralotor gold filters since with no ticks. My 08 I changed the oil at 1.5K and was a bit worried that I left the factory oil in my current truck for 4k, but nothing happened. Mines a 5.3L .

 

Hope they figure this out. I thought the lifter issue was a thing of the past.

[Badass69]

Ya I was thinking of getting my girlfriend to film while I rev it to 2000. I'll do that later.

 

Your truck sounds like my old 09 lol. It was a 2500HD with the LY6 6 liter. It too had piles of lifter noise...... and of course the dealers blew it off as the "normal" thing. Well at right around 100000 kms one finally self destructed, ate a lobe off the cam and cost GM a long block. I laughed in their face, lol. Take that for your "normal" bullshit song and dance.

 

Get it fixed and sell the truck. Problem solved!

[VMaxtastic]

I took it to three dealers. Two said its normal, one said it sounds like lifters. Only problem is the one that agrees with me is the hardest to get into with my schedule. Its NOT normal. I took some videos, but I dont know if you can really tell. Im gonna upload them, and let you guys listen...

 

OH. My drivers side seatbelt buckle is also backwards. So it falls off my shoulder constantly, and the belt is twisted. That issue has just been overshadowed by the others and I keep forgetting to mention it.

 

Edit: Im out at work, using my internet stick to upload.. Sooooo sloooowwwww

[VMaxtastic]

http://s305.photobucket.com/user/sveinn1984/media/20130707_110948_zpsbc3384c3.mp4.html

 

http://s305.photobucket.com/user/sveinn1984/media/20130707_110337_zps7f0295c0.mp4.html

 

I don't know if you guys can hear that knocking sound or not. I have a clip from inside the truck, but all the other noises just drown it out. Right before I shot this video, I passed a guy on the highway, and my motor just SCREAMED. It sounded like I had a supercharger bolted on. But ii would stop immediately after a certain RPM. So weird, no idea what to say about that.

[GMCDriver1]

I have the same problem with my seatbelt, not sure how the heck it got twisted around, but I have yet to be able to straighten it out. Sucks.

 

As for the ticking... I've had it in the 3 GMT-800s that I've own (2 with the 5.3L and 1 with the 4.8L) (1999 1500 Silverado, 2005 Sierra 1500, and 2002 Sierra) and also with the 1 GMT-900 that I owned 2007 1500 Sierra (5.3L) they all had a noticable but not loud ticking when warm and when cold. It was a big complaint around here many years ago when more folks drove the GMT-800s but it ended up being normal sounds for these types of engines.

[MikeNH]

1. Absolutely zero issue to use synthetic in a new, modern automotive engine. GM fills the Vette with M1 and the block is essentially the same as what is in our trucks. Old school stuff with flat lifters supposedly likes the higher zinc content of dino oil but that isn't an area I'm very familiar with.

 

2. To reverse a buckle, fold the seatbelt immediately above the buckle. Starting just slightly then increase the fold till it slightly overlaps. Slide the buckle over the fold and it will end up facing properly.

[VMaxtastic]

1. Absolutely zero issue to use synthetic in a new, modern automotive engine. GM fills the Vette with M1 and the block is essentially the same as what is in our trucks. Old school stuff with flat lifters supposedly likes the higher zinc content of dino oil but that isn't an area I'm very familiar with. 2. To reverse a buckle, fold the seatbelt immediately above the buckle. Starting just slightly then increase the fold till it slightly overlaps. Slide the buckle over the fold and it will end up facing properly.

I tired pretty much exactly what you describe with the seat belt. The slot is so narrow I couldn't get it to fold. I'll try again though. I just assumed they will have to replace it.

 

Can anyone hear the knocking that I hear in the video? I know the engine noise drowns it out. But I can still make it out in the clip. You kinda have to ignore all the background noise to hear the knock.

[Gurrzt]

It is better to use mineral oil during the initial engine break in period to ensure proper seating of rings. They recommend this for most new motorcycles. Why should cars and trucks be any different? I know some come form the factory filled with synthetic oil, but these are mostly high performance engines using more advanced materials for engine construction, including piston rings. I do not believe that the 5.3 or 6.2 V8 GM engines used in pickups fall into this category.

Engines are run at the factory before installation, engine (for all intensive purposes) is broken in when you get the vehicle.