I-5 Loud noise on startup when engine cold for about 10-15 seconds ,then goes away???

[ski.dive]

Every morning, when I first start-up the I-5 = there is are noises in the engine bay for a few seconds, then the noises go away for the rest of the day??

Anybody else have the same issue?

 

[rascole]

Heat shield rattling?

 

[Ghostbuster]

The motor oil isn’t flowing to where it needs to be fast enough.


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[Happy Hummer]

Yep! I figure that is pretty much the norm with this i-5 engine. Mine and the miss' both have/had this same issue. She had 144k on hers. Mine has 82k. I've also heard other H3's that sound exactly the same when they start.

 

[08H3]

Google "piston slap".