After a bout of check engine lights and engine misfires and no other codes I work on diagnosing the problem. At first I think the problem is a bad cam phaser because the problem seems to be on the right bank of cylinders but I end up replacing the timing chains because they are stretched. Below are some of the parts and tools I used.
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Oil tube and cap:
https://amzn.to/44qTTsD

Plastic rivets:
https://amzn.to/3Pe8RxR

Cam cover gaskets:
https://amzn.to/3KTcOFx

Timing cover gasket and seals:
https://amzn.to/45LmvOA

Cam holding tools:
https://amzn.to/3YU5503

Timing chain kit:
https://amzn.to/3qKtkkD