So I'm gonna try to explain (without technical knowledge) but my truck is a 202 Limited 3.5L Ecoboost, so when I start the car there is this sounds all trucks have that little music at the beginning and I noticed last 2-3 years at least the sound has cha,ged and is higher pitched. So when the sound is higher pitched which I don't like I noticed when I accelerate the acceleration doesn't respond right away and takes a few seconds. Although I noticed when the sounds is the rigbt one a deeper calmer starting noise then everything functions well and even the reverse beep either is higher or a good normal one think of it as a computer noise vs a high pitch alarm. So when the noise is right all works perfectly and when it's higher pitched it seems off. Hard to explain but even the garage doesn't wanna invest their time in trying to understand the underlying issue.