Does sound like exactly the same slapping sort of sound. No cause identified on mine at this point. Currently, the dealer wants me to drive it to 5K miles to let the engine "break in" and come back if it's still doing it - of course not acceptable on a brand new truck. A couple of mechanic...
Just purchased a new 2024 F-150 XLT super crew with the 5.5' bed between 100-200 miles as I recorded this. Has the 2.7L EcoBoost. Noticing this ticking noise following a remote start (cold engine) on the passenger side. Most noticeable after the idle drops a second time to the lowest idle...