Bought a 2006 Sonata 4 years ago, initially loved its smoothness. Started having issues in February, found low oil despite recent change. Mechanic added oil but a month later, heard rough rattle on cold start-ups. Mechanic diagnosed it as timing chain issue, quoted $2400 for repairs. After repairs, same sound persisted. Mechanic tried new oil assembly unit kit but issue remains. Now considering removing engine to diagnose further. Asking for help as problem persists despite spending a lot already.
Got a 2006 Sonata 4 years ago, loved its smoothness. Issues started in February, low oil despite recent change. Mechanic added oil but heard rough rattle on cold start-ups a month later. Diagnosed as timing chain issue, $2400 for repairs. After repairs, same sound persisted. Tried new oil assembly unit kit but issue remains. Considering removing engine to diagnose further. Asking for help as problem persists despite spending a lot already.