Three occasions of Knocking on start-up 4.6

[a6ft6inguy]

Anyone have any information for why a 13k mile 4.6 would have episodes of knocking w/ chek engine light on on start-up. I turned it off immediately let it sit for a minute and restarted it without any problems. Seems to me that the motor isn't keeping any lube on crucial part for start-up. I am going to call the Dealer but I don't expect them to know much or admit to knowing much.
Any help would be greatly appreciated. I searched for knocking because I thought I had read something about it once before but unable to find it now.
Thought about using one of the metal treatments to see if that helps but don't want to hurt the warranty.

 

[scottdk]

Anyone have any information for why a 13k mile 4.6 would have episodes of knocking w/ chek engine light on on start-up. I turned it off immediately let it sit for a minute and restarted it without any problems. Seems to me that the motor isn't keeping any lube on crucial part for start-up. I am going to call the Dealer but I don't expect them to know much or admit to knowing much.
Any help would be greatly appreciated. I searched for knocking because I thought I had read something about it once before but unable to find it now.
Thought about using one of the metal treatments to see if that helps but don't want to hurt the warranty.

Try this thread

http://www.genesisowners.com/hyundai-genesis-forum/showthread.php?t=3781&highlight=shake+rattle

 

[pilotdane]

My car was doing so well at avoiding the shakes that I stopped paying attention to how long I let the engine run. Then one day at work I just moved the car 30 feet and turned it off. Sure enough the next time I started it it had the shakes and check engine light. The little light in my head popped on as I thought "that's what everyone has been posting about". It worked itself out after a couple minutes running.