2012 engine issue

[Sbcross]

Has anyone had issue with engine knock after car sits for 5+ days. History is other dealership never could solve why it was there one day and would not replicate.
Finally after weeks on end and video proof they got it to rattle like a tank. They say it is bad valve springs and costs more to repair than an engine replacement.
Bought car as certified pre-owned an extended warranty to 125k. Has 112k on engine. Babied engine with premium fuel for ever oil changes with synthetic every 5k miles.

Anyone have similar issues. Any advice appreciated.

Thanks

 

[Shady_panda]

I believe thats one of the notorious problem for that year.

 

[PMCErnie]

I believe thats one of the notorious problem for that year.

Huh? The OP didn’t even mention which engine he has.

 

[Shady_panda]

Huh? The OP didn’t even mention which engine he has.

I'm going to guess V8 4.6l.

 

[Sbcross]

I'm going to guess V8 4.6l.

Sorry all it is the suspect V8 4.6l engine.

 

[Sbcross]

Any info would be appreciated if thid
S is fact or fiction on 4.6 l 2012 V8 engine
Thanks all

 

[homeofstone]

I understood only the very early 2009 model year 4.6 had valve spring problem. I had a 2011 4.6 and no problems and put over 200,000 miles on it. The engine needs to have only OEM oil filters. Non oem oil filters were a known problem in the 4.6. and Hyundai sent out a TSB on using only original oil filters.

 

[G-223911]

Thanks everyone for the info. Still awaiting response on warranty they want the dealer to drop the oil pan for shavings and photos of the valves to make a decision.

 

[Shady_panda]

I understood only the very early 2009 model year 4.6 had valve spring problem. I had a 2011 4.6 and no problems and put over 200,000 miles on it. The engine needs to have only OEM oil filters. Non oem oil filters were a known problem in the 4.6. and Hyundai sent out a TSB on using only original oil filters.

what kind of problem from the oil filter? I been going to take 5 and tread quarters, I never asked what they used, only did I changed it to wix this time around.

 

[PMCErnie]

what kind of problem from the oil filter? I been going to take 5 and tread quarters, I never asked what they used, only did I changed it to wix this time around.

Translation?

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[Shady_panda]

Translation?

What kind of problem did you get from a non-OEM oil filter? You never heard of Take 5 oil changes?

Edit: nvm, why did I even replied to you, stop being nosy.

 

[rtrofimovich]

What kind of problem did you get from a non-OEM oil filter? You never heard of Take 5 oil changes?

Edit: nvm, why did I even replied to you, stop being nosy.

Yikes

 

[Gunkk]

<back to topic>

Broken springs have little to do with oil filter selection. And the 2012 4.6 is NOT known for failing springs. That was a 2009 issue.

The OP says the car is covered by extended warranty, so that Warranty Co should pay the dealer to do whatever is best (a new engine isn't a bad thing!)