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Both probably

This is it after it's warmed up.

I have multiple times. They won't fix it.

Did yours do it every time or just once in awhile?

I sent an oil sample to Blackstone and it came back with really high iron and copper numbers. Including the factory fill the last oil change was the 4th oil fill in the engine. My truck has the infamous lifter rattle on startup.

They say it's "normal" and doesn't harm the engine but I disagree. My 2019 has done this since new. I sent an oil sample to Blackstone and it came back with really high iron and copper numbers. Including the factory fill the last oil change was the 4th oil fill in the engine.

Eaton Corp. is who designed these lifter systems. You can find out more here. https://www.eaton.com/us/en-us/catalog/engine-valvetrain/deactivating-hla.html

Originally Posted by JTK Originally Posted by Whitestar I have a 2019 Ram with a 5.7 Hemi that has lifter clatter on cold starts. I think this is how a roller lifter's needle bearings get trashed in the first place by getting hammered until the lifter gets pumped back up with oil. I know...

Joe, did your truck experience the lifter clatter on cold startups like mine?

I have a 2019 Ram with a 5.7 Hemi that has lifter clatter on cold starts. I think this is how a roller lifter's needle bearings get trashed in the first place by getting hammered until the lifter gets pumped back up with oil.