NHTSA Complaint #11518084 — 2011 HYUNDAI SONATA

My engine was replaced under warranty due to the major Theta engine recall, after 20k miles on the new engine its failing too, burning oil, smoking, making loud valve train noise on acceleration, and at time operates very sluggishly and strangely no engine codes ,almost like my engine code system was programmed to ignore these issues. My new replaced engine seems to be failing again and they don't care. I'm afraid this car will catastrophically fail or catch fire like I've been reading about.. Because its past the 12k warranty they are declining to fix,12k warranty REALLY ???!! Here's my concern, I am hearing many many ,many stories from others and even the dealer people that Hyundai is replacing the recall engines with BAD faulty engines, some I've heard have received 3 engines. My dealer lied to me saying it was a PCV ,the PCV valve was replaced and my engine is still failing like the first engine. Please help, Hyundai is basically getting away with ignoring the recall settlement by replacing the engines with still known faulty engines !