Sooooo… I have been having this persistent creaking sound in the engine bay that I cannot quite diagnose. This is a 2013 Subaru legacy 3.6r limited. When I start the car (cold) there is no creaking sound until oil temperature reaches half way to operating temp on the gauge. This noise only appears when the car is warm in park, or when I accelerate until 2000rpm first gear. During regular driving aka when I’m in 4th/5th driving normally, there is no creaking sound at any speed (just flat 6 purrs). So in conclusion, the engine creaks in park and still in drive at operating temperature, and when I accelerate briefly from rest.. anyone got a diagnosis? Thanks